Islam and Christianity — They Cannot Both Be True
Christianity and Islam share certain beliefs.
Both affirm that there is one God.
Both speak of Abraham, Moses and other biblical figures.
Both honour Jesus in some sense.
Both believe that God has revealed truth to humanity.
Both teach that human beings will face judgment.
But these similarities can obscure a fundamental reality:
Christianity and Islam make contradictory claims about Jesus Christ and God’s revelation.
Therefore, while Christians and Muslims can and should treat one another with respect, the two religions cannot both be true in their central claims.
This is not an insult to Muslims.
It is simply a matter of logic.
If Christianity says something happened and Islam says that same thing did not happen, both claims cannot simultaneously be true.
And nowhere is this clearer than with Jesus Christ.
Who Is Jesus?
Christianity stands or falls upon the identity of Jesus.
The New Testament does not present Him merely as another prophet.
John begins his Gospel:
“In the beginning was the Word, and the Word was with God, and the Word was God.”
— John 1:1
Then:
“And the Word became flesh and dwelt among us.”
— John 1:14
Thomas encounters the risen Jesus and declares:
“My Lord and my God!”
— John 20:28
St. Paul writes of Christ:
“For in him the whole fullness of deity dwells bodily.”
— Colossians 2:9
Christianity therefore makes an extraordinary claim:
Jesus Christ is truly God and truly man.
Islam rejects this.
The Qur’an describes Jesus — Isa ibn Maryam, Jesus son of Mary — as an important messenger of God, but rejects the Christian confession of His divinity.
It says:
“The Messiah, Jesus son of Mary, was only a messenger of Allah.”
— Qur’an 4:171
And it warns:
“Do not say, ‘Three.’”
— Qur’an 4:171
Elsewhere:
“They have certainly disbelieved who say, ‘Allah is the Messiah, the son of Mary.’”
— Qur’an 5:72
So we immediately encounter a contradiction.
Christianity:
Jesus is God incarnate.
Islam:
Jesus is not God.
Both cannot be correct.
Was Jesus Crucified?
The contradiction becomes even more serious when we reach the Cross.
The Crucifixion is not a minor Christian doctrine.
It stands at the centre of the Gospel.
St. Paul writes:
“Christ died for our sins in accordance with the scriptures.”
— 1 Corinthians 15:3
The four canonical Gospels describe His Crucifixion.
Paul’s letters proclaim it.
The earliest Christians preached it.
The Church Fathers proclaimed it.
Christianity itself makes little sense without it.
Yet the Qur’an says concerning Jesus:
“They did not kill him, nor did they crucify him, but it was made to appear to them.”
— Qur’an 4:157
Here the contradiction is unavoidable.
Christianity:
Jesus was crucified.
Islam:
Jesus was not crucified.
One of these claims must be wrong.
And there is another important difference.
The Christian sources describing Jesus’ Crucifixion originate in the first century, within the historical world of the Apostles.
The Qur’an appears approximately six centuries later.
That creates a serious historical question:
What evidence should cause us to reject the earlier testimony in favour of a denial appearing centuries afterward?
We will examine that question carefully later.
Did Jesus Rise From the Dead?
Christianity does not merely proclaim that Jesus died.
It proclaims:
He rose bodily from the dead.
Paul tells the Corinthians:
“If Christ has not been raised, then our preaching is in vain and your faith is in vain.”
— 1 Corinthians 15:14
Christianity therefore places itself in an unusually vulnerable position.
Paul essentially says:
If the Resurrection did not happen, Christianity is false.
The Apostles claimed to have encountered the risen Christ.
The earliest Christian proclamation centred upon His death and Resurrection.
Islam does not accept the Christian account of Christ’s saving death and Resurrection.
Again, the two systems cannot simply be combined.
Is God Trinity?
Christianity teaches:
There is one God.
Not three gods.
One God.
Within the one divine Being exist eternally:
The Father.
The Son.
The Holy Spirit.
This is the doctrine of the Trinity.
Jesus commands His Apostles to baptise:
“in the name of the Father and of the Son and of the Holy Spirit.”
— Matthew 28:19
Notice:
“name”
singular,
followed by:
Father, Son and Holy Spirit.
Islam strongly rejects the Trinity.
The Qur’an insists:
“Say, ‘He is Allah, One.’”
— Qur’an 112:1
Christians agree that God is one.
The disagreement is over what God’s oneness means.
Christianity teaches one divine nature in three divine Persons.
Islam rejects this understanding.
Later, we will examine whether the Qur’an always represents the Christian doctrine of the Trinity accurately, because some Qur’anic passages raise important questions about what form of Christian belief is actually being criticised.
Is Jesus the Son of God?
Christianity repeatedly identifies Jesus as the Son of God.
At Jesus’ Baptism:
“This is my beloved Son, with whom I am well pleased.”
— Matthew 3:17
Peter confesses:
“You are the Christ, the Son of the living God.”
— Matthew 16:16
John tells us why he wrote his Gospel:
“that you may believe that Jesus is the Christ, the Son of God.”
— John 20:31
Islam rejects divine sonship.
But an important misunderstanding must immediately be removed.
Christianity does not teach that God physically fathered Jesus through sexual relations with Mary.
That would be blasphemous and completely contrary to Christian doctrine.
When Christians call Jesus the Son of God, we are speaking about His eternal relationship with the Father.
The Son is eternally begotten, not created.
The Incarnation occurred when the eternal Son assumed a human nature in the womb of the Virgin Mary.
So when Christian doctrine is criticised, it must be the doctrine Christians actually believe — not a physical or biological concept of divine sonship that Christianity itself rejects.
What Happened to God’s Earlier Revelation?
Now we reach a question that will become extremely important.
Islam does not begin by claiming that God had never revealed Himself before Muhammad.
The Qur’an acknowledges earlier revelations.
It speaks of:
The Tawrat — Torah.
The Zabur — Psalms.
The Injil — Gospel.
The Qur’an says concerning the Torah:
“Indeed, We sent down the Torah, in which was guidance and light.”
— Qur’an 5:44
Then concerning the Gospel:
“And We sent, following in their footsteps, Jesus, son of Mary… and We gave him the Gospel, in which was guidance and light.”
— Qur’an 5:46
This creates an enormously important question.
What happened to those Scriptures?
Muslims commonly argue today that the biblical texts have been corrupted.
But we need to examine exactly what the Qur’an says about this.
Does it teach that the text itself of the Torah and Gospel had been completely corrupted before Muhammad?
Or does it accuse certain people of:
Misinterpreting revelation?
Concealing parts of it?
Distorting words?
Those are not necessarily the same claim.
And the distinction becomes critical.
“Let the People of the Gospel Judge”
The next verse is particularly significant.
The Qur’an says:
“Let the People of the Gospel judge by what Allah has revealed therein.”
— Qur’an 5:47
That raises an obvious question.
Why tell Christians to judge according to the Gospel if the Gospel available to them had already become textually unreliable?
The Qur’an also tells Muhammad:
“If you are in doubt about what We have revealed to you, ask those who have been reading the Scripture before you.”
— Qur’an 10:94
Again, this raises questions that deserve careful examination.
Why appeal to people possessing earlier Scripture if their Scripture could no longer function as a reliable witness?
We should not jump ahead of the evidence.
But we can already see the beginning of a serious problem.
The Islamic Dilemma Begins to Emerge
The argument often called the Islamic Dilemma develops from these Qur’anic affirmations.
In simplified form:
The Qur’an affirms that God revealed the Torah and Gospel.
It describes them as containing guidance and light.
It appeals to the People of the Book and their revelation.
But:
The biblical manuscripts that predate Islam contain doctrines contradicting Islam.
They proclaim:
Christ’s Crucifixion.
Christ’s death.
Christ’s Resurrection.
Christ’s divine identity.
His Sonship.
These teachings did not suddenly appear after Muhammad.
They are present in Christian texts centuries before Islam.
So a major question arises:
If the earlier Scriptures remained trustworthy, why do they contradict later Islamic claims?
But if those Scriptures had already been textually corrupted:
Why does the Qur’an speak of them as revelation containing guidance and light and appeal to their possessors?
That is the heart of the Islamic Dilemma.
We will give it its own full section rather than pretending these few paragraphs settle the matter.
We will also examine the strongest Muslim responses, including arguments concerning tahrif — corruption or distortion — because a serious Catholic apologetic argument should address what informed Muslims actually say in response.
The Historical Problem
There is also a chronological problem that cannot be ignored.
Christianity begins in the first century.
We possess New Testament manuscripts from centuries before Muhammad.
We also possess quotations of New Testament texts throughout the writings of early Christians.
By the time Islam emerges in the seventh century, Christian belief in:
The Trinity.
Christ’s divinity.
The Crucifixion.
The Resurrection.
The Eucharist.
was already centuries old.
Therefore it is historically impossible simply to argue that Christians changed all these teachings after Islam appeared.
The evidence predates Islam.
If corruption occurred, the question becomes:
When?
Where?
By whom?
What textual evidence demonstrates it?
And how was the corruption accomplished across Christian communities spread throughout different regions and languages?
These questions matter.
The Issue Is Ultimately Jesus
The Christian examination of Islam should never become merely an attack upon Muhammad or a competition between religious communities.
At its heart stands one Person:
Jesus Christ.
Jesus asked His disciples:
“Who do you say that I am?”
— Matthew 16:15
That question remains decisive.
Christianity answers:
The Christ.
The Son of the living God.
The Word made flesh.
The crucified and risen Lord.
Islam honours Jesus as Messiah and prophet, but denies fundamental claims Christianity makes about Him.
Respect cannot make contradictory propositions compatible.
Either Jesus was crucified or He was not.
Either He rose from the dead or the Apostolic proclamation is false.
Either He is the divine Son or He is not.
Either the Gospel faithfully preserves the Apostolic witness or it does not.
Christianity and Islam cannot both be true in their central claims.
So we now have to examine the evidence.
And perhaps the best place to begin is with the very book that Islam presents as its final revelation:
The Qur’an and the Bible — Does the Qur’an Confirm the Earlier Scriptures?
One of the most important questions in Christian-Muslim dialogue concerns the Bible itself.
Muslims commonly argue that God originally revealed true Scriptures to Moses and Jesus, but that the Bible Christians possess today has been corrupted or changed.
This claim matters enormously.
Why?
Because if the Bible reliably preserves the revelation that existed before Islam, then Islam faces a serious problem.
The Bible teaches doctrines that the Qur’an later denies.
But before examining the accusation of corruption, we should ask a more basic question:
What does the Qur’an itself say about the earlier Scriptures?
The answer is surprisingly positive.
The Torah — “Guidance and Light”
The Qur’an says:
“Indeed, We sent down the Torah, in which was guidance and light.”
— Qur’an 5:44
According to Islam itself, therefore, the Torah came from God.
It contained:
Guidance.
Light.
The Qur’an then speaks about prophets, rabbis and scholars judging according to God’s Scripture.
So Christianity does not need to convince a Muslim that God revealed Scripture before Muhammad.
The Qur’an already says He did.
The Gospel — “Guidance and Light”
The Qur’an continues:
“And We sent, following in their footsteps, Jesus, son of Mary, confirming that which came before him in the Torah.”
Then:
“And We gave him the Gospel, in which was guidance and light.”
— Qur’an 5:46
Again, notice the language.
The Gospel is not described as a human fabrication.
It contains:
Guidance.
Light.
And Jesus confirms the previous revelation.
Then comes an extremely important statement.
“Let the People of the Gospel Judge”
The Qur’an says:
“Let the People of the Gospel judge by what Allah has revealed therein.”
— Qur’an 5:47
Think carefully about the implications.
The Qur’an is addressing the People of the Gospel in the seventh century.
It tells them to judge according to what God revealed in the Gospel.
That raises an obvious question:
What Gospel were seventh-century Christians supposed to consult?
Christianity had already existed for approximately six centuries.
Christians possessed Gospel manuscripts.
They read Matthew, Mark, Luke and John.
They quoted them.
They translated them.
They used them liturgically.
And those Gospels teach things that contradict Islam.
Most importantly:
Jesus was crucified.
Jesus died.
Jesus rose from the dead.
Jesus possesses an extraordinary divine identity.
So if Christians in Muhammad’s time were commanded to judge according to their Gospel, the claim that their Gospel had already become completely unusable becomes difficult to maintain.
“You Have No Ground Until You Uphold the Torah and Gospel”
The Qur’an goes even further:
“O People of the Book! You have no ground to stand on unless you observe the Torah, the Gospel, and what has been revealed to you from your Lord.”
— Qur’an 5:68
Again the question arises:
How could Jews uphold the Torah and Christians uphold the Gospel if the texts available to them were already hopelessly corrupted?
The natural reading appears to assume that these communities still possessed meaningful access to God’s previous revelation.
“Ask Those Who Have Been Reading the Scripture Before You”
Another striking passage occurs in Surah 10.
The Qur’an addresses Muhammad:
“If you are in doubt about what We have revealed to you, ask those who have been reading the Scripture before you.”
— Qur’an 10:94
Muslim commentators naturally discuss precisely what kind of conditional statement is being made here, and Muslims do not generally understand this verse as saying Muhammad actually doubted his revelation.
That distinction should be acknowledged.
But the apologetic question remains.
Why appeal to people reading earlier Scripture at all if their Scriptures had become textually worthless?
The verse assumes that the earlier scriptural community can function as some kind of confirming witness.
“None Can Change His Words”
There are also passages in the Qur’an stating that God’s words cannot be changed.
For example:
“There is no changer of His words.”
— Qur’an 6:115
And:
“None can alter the words of Allah.”
— Qur’an 18:27
Muslim interpreters may argue that these passages concern God’s decrees, promises or the Qur’an rather than constituting a direct statement about the preservation of every previous manuscript.
That is a legitimate distinction to discuss.
So we should not simply quote these verses and declare the entire argument finished.
But they do create another question:
If God revealed the Torah and Gospel as guidance and light, what exactly does it mean to claim that His revelation was subsequently corrupted beyond reliability?
To answer that fairly, we need to examine what the Qur’an actually accuses Jews and Christians of doing.
Does the Qur’an Say the Bible Was Textually Corrupted?
The Arabic concept normally discussed here is:
Tahrif
— distortion or corruption.
The Qur’an certainly accuses some among the People of the Book of serious wrongdoing concerning revelation.
For example:
“A party of them used to hear the words of Allah and then distort it after they had understood it.”
— Qur’an 2:75
Another passage speaks of people:
“distorting words from their [proper] usages.”
— Qur’an 4:46
And Qur’an 3:78 describes a group who:
“distort the Scripture with their tongues”
so that listeners might think something belongs to Scripture when it does not.
These are serious accusations.
But we must identify precisely what is being alleged.
Corrupting the Text or Distorting Its Meaning?
There is an important difference between:
Altering the actual manuscripts of Scripture
and
Misrepresenting, concealing or twisting what Scripture means.
Imagine someone deliberately misquotes the Bible during a debate.
They have distorted Scripture.
But that does not mean every Bible in existence has been textually rewritten.
Likewise, someone can conceal a passage or deliberately interpret it dishonestly without changing the underlying manuscript.
Several Qur’anic accusations can naturally be understood in terms of:
Misinterpretation.
Concealment.
Verbal distortion.
False claims about what Scripture says.
That is not automatically equivalent to the much larger modern claim:
“The biblical text itself had already been comprehensively corrupted before Muhammad.”
That proposition needs evidence of its own.
Qur’an 3:78 Is Particularly Interesting
Consider the wording:
“There is among them a party who distort the Scripture with their tongues so you may think it is from the Scripture, but it is not from the Scripture.”
— Qur’an 3:78
Notice something.
The passage distinguishes between:
What actually belongs to Scripture
and
What people falsely claim belongs to Scripture.
That distinction seems to presuppose the existence of a genuine Scripture against which the false claim can be measured.
The problem described is dishonest representation.
It does not straightforwardly say:
“The entire Torah and Gospel have disappeared and the books possessed by Jews and Christians are corrupted replacements.”
What About Qur’an 2:79?
Another important passage says:
“Woe to those who write the Scripture with their own hands, then say, ‘This is from Allah,’ in order to exchange it for a small price.”
— Qur’an 2:79
This clearly condemns people who write something falsely and attribute it to God.
But again, notice what does not necessarily follow.
If someone today writes a false Gospel and claims it came from God, that would not prove that every existing manuscript of Matthew, Mark, Luke and John had simultaneously been altered.
Forgery proves the existence of a forgery.
It does not automatically prove universal textual corruption.
So each Qur’anic passage must be interpreted carefully rather than simply assuming it teaches the later claim we are trying to establish.
The Manuscript Evidence Creates a Bigger Problem
Now history enters the discussion.
We possess biblical manuscripts that predate Islam.
This is extremely important.
Muhammad lived in the sixth and seventh centuries, traditionally approximately AD 570–632.
But major biblical manuscripts existed before him.
For example, Codex Vaticanus dates from the fourth century.
Codex Sinaiticus also dates from the fourth century.
Both contain substantial portions of the biblical text — and the New Testament they witness teaches the same fundamental Christianity that Islam later contradicts.
Long before Muhammad, Christians were reading about:
Christ’s Crucifixion.
His Resurrection.
His divine Sonship.
Father, Son and Holy Spirit.
These doctrines cannot reasonably be blamed upon Christians altering the Bible after Muhammad.
We possess the evidence from before Muhammad was born.
And the Evidence Goes Earlier Still
The manuscript evidence does not begin in the fourth century.
We possess New Testament manuscripts and fragments from earlier centuries.
We also possess an enormous body of quotations from early Christian writers.
Consider the Christians we have already encountered:
Clement of Rome.
Ignatius of Antioch.
Justin Martyr.
Irenaeus.
They lived hundreds of years before Muhammad.
And their writings already demonstrate Christian belief in:
Jesus Christ’s unique divine identity.
His Crucifixion.
His Resurrection.
The Eucharist.
Father, Son and Holy Spirit.
So there is no historical period in which we find an early “Islamic Christianity” that later transformed into orthodox Christianity.
The evidence runs in the opposite direction.
When Did the Corruption Happen?
This produces a very important question for the corruption theory:
When exactly was the Bible corrupted?
Was it before AD 100?
If so, the corruption would have occurred while Apostolic Christianity was still extremely young.
Was it in the second century?
Then why do manuscripts and Christian writers from geographically separated communities already agree upon the central events Islam later denies?
Was it in the fourth century?
That is too late.
We already possess earlier evidence.
Was it after Muhammad?
That is impossible as an explanation because manuscripts predating Muhammad contain the same fundamental teachings.
A corruption theory therefore needs more than:
“The Bible changed.”
It needs a historically plausible explanation of:
When.
Where.
How.
By whom.
And what the original text actually said.
Christianity Was Already Geographically Widespread
There is another difficulty.
Christianity was not confined to one small community possessing one copy of Scripture.
Before Islam, Christianity had spread across enormous geographical regions.
Christian Scriptures existed in different languages.
Christian communities existed throughout:
Palestine.
Syria.
Egypt.
Asia Minor.
Greece.
Rome.
North Africa.
Persia and beyond.
To replace Christian Scripture universally would require altering manuscripts distributed across different regions, languages and even Christian communities that sometimes strongly disagreed with one another.
Yet these different textual traditions still testify to the fundamental Christian events Islam later denies.
Most importantly:
Jesus was crucified.
The Crucifixion Cannot Be Removed
This deserves special emphasis.
Even if every New Testament manuscript somehow disappeared tomorrow, we could still establish that Christians believed Jesus was crucified centuries before Islam from early Christian writings and other historical evidence.
St. Paul writes:
“We preach Christ crucified.”
— 1 Corinthians 1:23
Paul wrote in the first century.
Ignatius speaks about Christ’s suffering.
Justin Martyr discusses the Crucifixion.
Irenaeus proclaims the same faith.
The Crucifixion is embedded throughout the earliest Christian tradition.
So when Qur’an 4:157 says:
“They did not kill him, nor did they crucify him…”
we are not merely dealing with two different interpretations of the same document.
We have a seventh-century claim contradicting a historical claim attested centuries earlier.
That requires explanation.
What Was the “Gospel” Given to Jesus?
A Muslim may respond:
“The Qur’an does not confirm Matthew, Mark, Luke and John. It confirms the original Injil given directly to Jesus.”
This is an important Muslim argument and deserves a serious answer.
The Qur’an does indeed speak about God giving Jesus the Injil.
But then another historical problem appears:
Where is the evidence for this separate Islamic Injil?
We possess extensive evidence concerning early Christianity.
We possess:
New Testament manuscripts.
Early Christian quotations.
Liturgical texts.
Apocryphal writings.
Heretical writings.
Pagan criticisms of Christianity.
Yet we have no identifiable first-century book corresponding to an Islamic Gospel in which Jesus teaches:
I am merely a prophet.
I will not be crucified.
I am not the Son of God.
Muhammad will bring the final revelation centuries later.
If such a revelation existed and was subsequently lost, historical evidence for that claim must be supplied.
It cannot simply be assumed because a later text says Jesus received an Injil.
This Is Where the Problem Becomes Serious
We now have several Qur’anic claims:
God revealed the Torah.
God gave Jesus the Gospel.
The Torah contained guidance and light.
The Gospel contained guidance and light.
The People of the Gospel are told to judge according to what God revealed therein.
The People of the Book are told to uphold their revelation.
At the same time, the Scriptures demonstrably possessed by Christians before Islam teach doctrines Islam rejects.
That leads directly toward the argument we mentioned earlier.
The Islamic Dilemma
The dilemma can now be stated more precisely.
Suppose the Torah and Gospel available around Muhammad’s time were substantially reliable.
Then Islam faces a problem because those Scriptures contradict important Islamic claims.
They teach:
Jesus was crucified.
Jesus died.
Jesus rose again.
Jesus is the Son of God.
Christ possesses divine identity.
But suppose instead that the Torah and Gospel had already been textually corrupted beyond reliability.
Then another problem appears.
Why does the Qur’an:
Describe them as guidance and light?
Tell their communities to judge by them?
Appeal to people reading previous Scripture?
Tell the People of the Book to uphold them?
And where is the clear Qur’anic statement explaining that the biblical manuscripts possessed by Jews and Christians had already been replaced by corrupted texts?
This creates the dilemma:
If the Bible was reliable, its teachings contradict Islam.
If the Bible was already corrupted, the Qur’an’s positive appeals to the earlier Scriptures become difficult to explain.
That is the Islamic Dilemma.
But we should not stop there.
A knowledgeable Muslim has responses.
And if we want this site to make a serious argument rather than an easy one, we need to address them.
The Muslim Response
A Muslim may argue:
The Qur’an confirms only the original revelations, not the present Bible.
Or:
The Qur’an confirms whatever truth remained within Jewish and Christian Scripture.
Or:
Tahrif included textual corruption as well as misinterpretation.
Or:
“Gospel” refers to revelation given to Jesus, not the four canonical Gospels.
These responses deserve examination.
But they do not automatically solve the historical problem.
Because we can still ask:
Where is the original uncorrupted Injil?
What did it contain?
When was it lost?
What manuscript evidence demonstrates the change?
Why do pre-Islamic biblical manuscripts contain essentially the same central Christian claims as modern Bibles?
Why does the Qur’an appeal to Scripture possessed by communities in its own historical setting?
These are historical questions, not insults.
And they require historical answers.
The Burden of Evidence
Christians do not need to demonstrate that every handwritten biblical manuscript is absolutely identical.
They aren’t.
Ancient manuscripts contain textual variants.
Biblical textual criticism openly studies them.
But textual variants are very different from demonstrating that Christianity’s fundamental message was rewritten.
To overturn the historical Christian record, one would need evidence that the original Gospel taught something fundamentally different from:
Christ crucified.
Christ risen.
Christ as Lord.
And then evidence explaining how that original message disappeared while the Christianity represented throughout our surviving first- and second-century evidence replaced it.
That evidence has not simply been produced by asserting:
“The Bible was corrupted.”
The claim itself must be demonstrated.
The Question Becomes Unavoidable
The Qur’an asks Christians to recognise Muhammad as a prophet.
But Christians already possessed Scriptures centuries before Muhammad.
Those Scriptures provide standards by which later religious claims can be evaluated.
So the Christian is entitled to ask:
Why should I reject the earlier Apostolic testimony about Jesus in favour of a contradictory account appearing approximately six centuries later?
That question becomes particularly powerful when we examine the central historical event Islam denies:
Was Jesus Really Crucified? — The Historical Evidence vs. Qur’an 4:157
The Crucifixion of Jesus is the point at which the conflict between Christianity and Islam becomes impossible to avoid.
Christianity proclaims:
Jesus Christ was crucified under Pontius Pilate, died, was buried, and rose from the dead.
Islam teaches:
“They did not kill him, nor did they crucify him, but it was made to appear to them.”
— Qur’an 4:157
These claims cannot both describe the same historical event correctly.
Either Jesus was crucified or He was not.
So this question should be approached historically:
What does the earliest evidence tell us?
The Earliest Christian Evidence
The Qur’an emerged in the seventh century.
Our earliest Christian evidence comes from the first century, within decades of Jesus’ death.
One of the earliest surviving Christian sources is St. Paul’s First Letter to the Corinthians, generally dated to approximately AD 53–55.
Paul writes:
“We preach Christ crucified.”
— 1 Corinthians 1:23
But 1 Corinthians contains something even more important.
Paul reminds the Corinthians of a tradition he had previously received:
“Christ died for our sins in accordance with the scriptures, that he was buried, that he was raised on the third day…”
— 1 Corinthians 15:3–4
Paul says explicitly:
“I delivered to you… what I also received.”
This indicates that Paul is passing on an earlier Christian tradition.
Many scholars date the tradition behind 1 Corinthians 15 extremely early — potentially within only a few years of Jesus’ death.
Therefore belief in:
Christ’s death.
Burial.
Resurrection.
was not something Christians invented centuries later.
It stands at the beginning of Christianity.
Paul Knew the Apostles
Paul was not writing in isolation centuries after Jesus.
He tells us in Galatians that after his conversion he went to Jerusalem and met Cephas — Peter.
He stayed with him for fifteen days.
Paul also met:
James, the Lord’s brother.
— Galatians 1:18–19
Later Paul again met important leaders of the Jerusalem Church:
James.
Cephas.
John.
— Galatians 2:9
These were people directly connected to Jesus.
So the claim that Jesus was crucified cannot reasonably be dismissed as a legend invented long after everyone who knew Him had died.
Paul was preaching the Crucifixion while members of the Apostolic generation were still alive.
All Four Gospels Agree
Then we have the four canonical Gospels.
Matthew.
Mark.
Luke.
John.
They differ in perspective and emphasis, but all four agree upon the central historical event:
Jesus was crucified under Pontius Pilate.
Mark records:
“And they crucified him.”
— Mark 15:24
Matthew:
“And when they had crucified him…”
— Matthew 27:35
Luke:
“There they crucified him.”
— Luke 23:33
John:
“There they crucified him.”
— John 19:18
There is no surviving early Christian tradition in which the Apostles preach:
Jesus escaped crucifixion.
The Cross is everywhere.
Pontius Pilate Anchors the Story in History
Christianity does not merely say:
“Long ago Jesus was killed.”
It identifies the Roman governor:
Pontius Pilate.
Pilate governed Judaea during the period in which Jesus lived.
This matters because Christianity places its central claim within an identifiable historical setting.
That is why the ancient Christian Creed itself declares:
“He suffered under Pontius Pilate.”
The Crucifixion is not presented as an abstract spiritual teaching.
It is presented as an event in history.
Non-Christian Evidence
The case becomes stronger because Christians are not our only sources.
The Roman historian Tacitus, writing in the early second century, discusses Christians and their founder.
He says that Christus suffered the extreme penalty during the reign of Tiberius at the hands of Pontius Pilate.
Tacitus was certainly not promoting Christianity.
He regarded Christianity with contempt.
Yet his testimony independently confirms the basic Christian historical framework:
Christ was executed.
Under Pontius Pilate.
During the reign of Tiberius.
This is important precisely because Tacitus was not a Christian believer.
Josephus
The Jewish historian Josephus, writing near the end of the first century, also contains a passage concerning Jesus.
The surviving form of the famous Testimonium Flavianum contains wording that was almost certainly modified by later Christian transmission.
We should acknowledge that rather than pretending there is no scholarly problem.
Nevertheless, many scholars conclude that the passage contains an authentic Josephan core referring to:
Jesus.
His condemnation by Pilate.
His followers.
Josephus therefore provides another strand of evidence, although Tacitus is cleaner for the specific historical point.
Even Hostile Traditions Presuppose His Death
Later Jewish traditions hostile to Christianity do not generally preserve an alternative memory in which:
Jesus was never executed.
They attack Jesus and Christianity in very different ways.
That is significant.
The debate in antiquity was not primarily:
“Jesus was never put to death.”
Rather, Christians and their opponents disputed:
Who Jesus was.
What His death meant.
Whether He rose from the dead.
The execution itself was extraordinarily difficult to deny.
What Do Modern Historians Say?
The Crucifixion is widely regarded by historians of antiquity as one of the best-established facts about the historical Jesus.
This does not mean historians can establish through historical method every theological claim Christians make about Calvary.
History alone cannot demonstrate:
“Jesus died for the sins of the world.”
That is a theological claim requiring further argument.
But history can ask:
Was Jesus of Nazareth executed by Roman crucifixion?
And the evidence is exceptionally strong.
Even scholars who do not accept Christianity generally accept that Jesus was crucified.
That distinction is important.
The historical argument does not depend upon assuming beforehand that Christianity is true.
Why Crucifixion Makes Sense Historically
Crucifixion was a Roman method of execution associated particularly with slaves, rebels and people regarded as threats to Roman order.
The Gospel accounts describe Jesus being presented to Pilate under the accusation that He claimed kingship:
“The King of the Jews.”
The inscription placed over the Cross reflects precisely this political charge.
From the Roman perspective, a supposed rival “king” in Judaea could represent a threat to imperial authority.
The manner of Jesus’ death therefore fits what we know about the Roman world.
Why Would Christians Invent a Crucified Messiah?
There is another powerful consideration.
Crucifixion was shameful.
Paul himself acknowledges the problem:
“We preach Christ crucified, a stumbling block to Jews and folly to Gentiles.”
— 1 Corinthians 1:23
Think about that.
If early Christians were freely inventing a story designed to convince Jews that Jesus was the Messiah, crucifixion was an extraordinary choice.
Deuteronomy says:
“A hanged man is accursed by God.”
— Deuteronomy 21:23
Paul himself discusses this difficulty in Galatians 3:13.
The first Christians therefore had to explain something embarrassing and shocking:
Their Messiah had been publicly executed.
The Cross was not an obvious piece of successful religious propaganda.
It was something requiring theological explanation.
The Apostles Did Not Hide the Cross
Peter’s preaching in Acts repeatedly centres upon the fact that Jesus was killed.
At Pentecost:
“This Jesus… you crucified and killed by the hands of lawless men.”
— Acts 2:23
Then comes the Christian proclamation:
“But God raised him up.”
— Acts 2:24
The Apostolic message is therefore not:
Jesus escaped death.
It is:
Jesus was killed.
God raised Him from the dead.
That distinction is fundamental.
Christianity’s answer to the apparent defeat of the Cross was Resurrection, not denial that the Crucifixion occurred.
Then Comes the Qur’an
Approximately six centuries later, the Qur’an states:
“They did not kill him, nor did they crucify him, but it was made to appear to them.”
— Qur’an 4:157
From the Christian perspective, this creates a major historical problem.
The denial appears centuries after:
Paul’s letters.
The Gospel traditions.
The Apostolic preaching.
Early Christian writings.
Non-Christian Roman testimony.
The obvious question is:
What historical evidence does the seventh-century denial possess that overturns the much earlier evidence?
Simply claiming later revelation does not settle the question for someone who has not already accepted Muhammad as a prophet.
That would be circular:
The Qur’an is correct because Muhammad is a prophet.
But:
We know Muhammad is a prophet because the Qur’an says so.
A Christian is entitled to examine the claim independently.
What Does “It Was Made to Appear” Mean?
Interestingly, Qur’an 4:157 does not explicitly explain what happened instead.
It says:
“it was made to appear to them.”
Different interpretations developed within Islamic tradition.
A common interpretation is that another person was made to resemble Jesus and was crucified instead.
Candidates proposed in later traditions have included different individuals.
But:
The Qur’an itself does not name a substitute.
This distinction matters.
We should not attribute every later substitution theory directly to the Qur’anic text.
The Qur’an denies that Jesus was crucified, but the precise historical mechanism has been interpreted in different ways.
The Substitution Problem
Suppose someone else was made to look exactly like Jesus and was crucified in His place.
A serious theological problem follows.
The people witnessing the event would naturally conclude:
Jesus had been crucified.
His followers could sincerely preach:
Jesus died on the Cross.
Christianity could then develop around a false belief produced by the very appearance God permitted.
That raises a difficult question:
Why would God allow the followers of Jesus to be deceived about the central event upon which Christianity would subsequently be built?
And the problem becomes even larger.
According to Islam, Jesus was a genuine prophet of God.
Yet within the first generation after Jesus, His followers were preaching:
Crucifixion.
Resurrection.
His exalted identity.
If that message was fundamentally false, then one must explain how the followers of a true prophet fell into catastrophic error almost immediately.
Where Are the True Followers of Jesus?
This leads to another historical question.
If the Apostles and early Christians misunderstood what happened to Jesus, where were the Christians who preserved the supposedly authentic Islamic teaching?
Where are the first-century followers proclaiming:
Jesus was not crucified.
Jesus was merely a prophet.
The Crucifixion was an illusion or substitution.
The later Christian Gospel was false.
We possess evidence from competing early Christian groups.
We possess orthodox Christians.
Gnostics.
Jewish-Christian groups.
Various theological controversies.
Yet the historical evidence does not reveal a first-century community teaching the complete Islamic understanding of Jesus that later emerges in the Qur’an.
That absence requires explanation.
What About Gnostic Texts?
Sometimes later writings are cited because certain Gnostic groups possessed unusual ideas concerning Jesus’ suffering.
For example, some texts distinguish between the earthly appearance of Jesus and a spiritual Christ or portray the Crucifixion in highly unusual ways.
But this does not establish the Islamic account.
These texts are:
Later than the earliest Christian evidence.
Theologically very different from Islam.
Often rooted in Gnostic ideas Islam itself would reject.
Finding an ancient group that denied or reinterpreted some aspect of Christ’s physical suffering does not demonstrate that the Qur’anic account is historically correct.
The Earlier Evidence Wins the Historical Question
If we temporarily put theological commitments aside and simply compare the sources, the situation is striking.
First century:
Paul proclaims Christ crucified.
First century:
All four Gospel traditions proclaim the Crucifixion.
Early Christianity:
The Cross stands at the centre of Christian preaching.
Early second century:
Ignatius and other Christians continue proclaiming Christ’s suffering and death.
Early second century:
The Roman historian Tacitus independently connects Christ’s execution with Pontius Pilate.
Then:
Seventh century:
The Qur’an denies that Jesus was crucified.
Historically, the burden is therefore upon the later contradictory claim.
This Does Not Yet Prove Christianity
We should be precise.
Establishing that Jesus was crucified does not by itself prove:
The Trinity.
The Catholic Church.
The Eucharist.
The Resurrection.
Those require their own arguments.
But it creates a severe problem for Islam because the Qur’an makes a specific historical denial.
If Jesus really was crucified, then Qur’an 4:157 appears to make an incorrect claim about history.
And if the Qur’an is supposed to be the perfect revelation of God, that becomes extremely significant.
The Real Question
The Christian can therefore ask the Muslim respectfully:
Why should we reject multiple first-century sources and early independent historical testimony in favour of a denial appearing approximately six centuries later?
The answer cannot simply be:
“Because the Qur’an says so.”
Because the very question under investigation is whether the Qur’an is truly revelation from God.
Its historical claims must therefore be open to examination.
Christianity makes its own claim openly:
Jesus suffered.
Jesus was crucified.
Jesus truly died.
Jesus was buried.
And then Christianity makes an even greater claim:
The tomb did not hold Him.
Because the real Christian response to Calvary was never to deny the death of Jesus.
It was to proclaim something far more extraordinary:
Jesus Rose From the Dead — What Is the Evidence for the Resurrection?
Christianity does not end with the Crucifixion.
The first Christians made an even more extraordinary claim:
Jesus Christ rose bodily from the dead.
This is not an optional part of Christianity.
St. Paul says:
“If Christ has not been raised, then our preaching is in vain and your faith is in vain.”
— 1 Corinthians 15:14
That is an astonishing statement.
Paul effectively places Christianity on the line.
If Jesus remained dead, Christianity is false.
So what evidence led the earliest Christians to proclaim that He had risen?
Begin With What We Can Establish Historically
Before discussing theology, we can identify several facts that require explanation.
After Jesus’ Crucifixion:
His followers proclaimed that He had risen from the dead.
Individuals and groups claimed to have seen Him alive.
The proclamation began extremely early.
Paul, originally an opponent of the Christian movement, became convinced that he had encountered the risen Christ.
James, the brother of Jesus, became a prominent leader of the Jerusalem Church.
The Resurrection became the centre of Christian preaching.
The question is:
What best explains this?
The Earliest Resurrection Tradition
Again, one of our most important sources is 1 Corinthians 15.
Paul writes:
“For I delivered to you as of first importance what I also received…”
Then he gives the tradition:
“that Christ died for our sins in accordance with the scriptures, that he was buried, that he was raised on the third day…”
— 1 Corinthians 15:3–4
Paul then lists appearances:
“he appeared to Cephas, then to the twelve.”
Then:
“he appeared to more than five hundred brethren at one time.”
Then:
“he appeared to James, then to all the apostles.”
Finally Paul says:
“Last of all… he appeared also to me.”
— 1 Corinthians 15:5–8
This passage is extraordinarily important because Paul’s letter was written only a few decades after the Crucifixion, and the tradition Paul says he received is earlier still.
The Resurrection proclamation therefore cannot reasonably be dismissed as a legend that appeared centuries after Jesus.
It was there at Christianity’s beginning.
Peter Is Named
Paul specifically names:
Cephas — Peter.
That matters.
Peter was one of Jesus’ closest disciples.
Paul personally knew Peter.
As we have already seen, Paul tells the Galatians:
“I went up to Jerusalem to visit Cephas and remained with him fifteen days.”
— Galatians 1:18
So Paul was not separated from the original Apostles by centuries of anonymous storytelling.
He personally interacted with them.
And the message they shared centred upon:
Christ crucified.
Christ risen.
James Is Named
Paul also says:
“Then he appeared to James.”
— 1 Corinthians 15:7
James is particularly interesting.
The Gospels indicate that during Jesus’ public ministry His own brethren did not fully understand or believe in Him.
John says:
“For even his brothers did not believe in him.”
— John 7:5
Yet after the Resurrection, James becomes a major leader of the Jerusalem Church.
Paul later identifies him among the leading figures:
“James and Cephas and John, who were reputed to be pillars…”
— Galatians 2:9
Something requires explanation.
Why did James move from scepticism or unbelief to leadership within the Christian movement?
Paul’s answer is:
The risen Jesus appeared to him.
Then There Is Paul Himself
Paul presents an even more dramatic case.
He was not a grieving disciple desperately hoping Jesus was alive.
He was an enemy of the Christian movement.
Paul tells the Galatians:
“I persecuted the church of God violently and tried to destroy it.”
— Galatians 1:13
Yet Paul became one of Christianity’s greatest missionaries.
Why?
Paul’s own explanation is straightforward:
He encountered the risen Jesus.
Whatever someone ultimately believes happened to Paul, his conversion requires explanation.
He went from:
Persecuting Christians
to
Proclaiming Jesus as Lord
and suffering for that proclamation.
The Empty Tomb
All four Gospels also report that Jesus’ tomb was discovered empty.
And they contain a particularly interesting detail:
Women are presented as the first witnesses to the empty tomb.
Mary Magdalene is especially prominent.
This is significant because women did not possess the same social standing as men in many areas of ancient public testimony.
If later Christians were simply inventing the most persuasive story possible, making women the first discoverers of the empty tomb would be an unusual apologetic strategy in that cultural setting.
Yet the tradition remains.
Why?
A natural explanation is:
That is what the earliest Christians remembered happening.
The Empty Tomb Alone Is Not Enough
However, we should be careful.
An empty tomb by itself does not prove a Resurrection.
Many alternative explanations could theoretically be proposed.
Perhaps:
The body was moved.
Someone went to the wrong tomb.
Someone stole the body.
An empty grave merely tells us that a body is missing.
Christianity’s claim rests upon something more:
The tomb was empty
and
the disciples claimed Jesus appeared to them alive afterward.
Both require explanation.
Did the Disciples Steal the Body?
One ancient counterclaim was that Jesus’ disciples stole His body.
Matthew itself records this accusation:
“His disciples came by night and stole him away while we were asleep.”
— Matthew 28:13
But this explanation immediately encounters a problem.
Stealing a body might explain:
An empty tomb.
It does not explain why the disciples themselves came to believe:
Jesus had actually risen and appeared to them.
If they stole the body, they would know the Resurrection proclamation was false.
That is very different from someone sincerely dying for a belief that happens to be mistaken.
People can die for false beliefs.
History proves that.
But people generally do not willingly suffer for something they personally fabricated and know to be false.
Did the Disciples Hallucinate?
Another explanation is that Jesus’ followers experienced grief-induced visions or hallucinations.
This deserves more serious consideration than simply mocking it.
Bereaved people can have powerful experiences involving deceased loved ones.
But several difficulties remain.
The early Christian claim was not merely:
“We sensed Jesus’ spiritual presence.”
It was:
God bodily raised Jesus from the dead.
The Gospel traditions describe:
Conversation.
Touch.
Eating.
Multiple encounters.
Paul’s tradition also refers to appearances to:
Peter.
The Twelve.
James.
Groups.
Paul himself.
A hallucination theory therefore has to explain a variety of experiences, involving people in very different psychological situations.
Most importantly:
Paul was not grieving Jesus.
He was persecuting His followers.
What About the Five Hundred?
Paul says Jesus:
“appeared to more than five hundred brethren at one time, most of whom are still alive.”
— 1 Corinthians 15:6
We should not exaggerate this argument.
We do not possess five hundred independent written testimonies.
Paul is our source for the claim.
But his statement is still interesting because he adds:
“most of whom are still alive.”
That sounds very different from a story deliberately placed in an unreachable mythical past.
Paul is writing while people associated with the claimed events remain alive.
Did Jesus Merely Survive Crucifixion?
Another theory proposes that Jesus never truly died.
Perhaps He survived the Cross, revived in the tomb and appeared to His disciples.
Historically and medically, this faces enormous difficulties.
Roman crucifixion was designed to kill.
The Gospel traditions present Jesus as scourged and crucified before His death was confirmed.
John even records a soldier piercing Jesus’ side after determining that He had already died.
But there is an even deeper problem.
Suppose Jesus somehow survived.
Imagine what the disciples would have encountered:
A brutally scourged man.
Severely wounded.
Barely surviving an execution.
That would hardly produce the conviction:
Jesus has gloriously conquered death.
They would conclude:
Jesus desperately needs medical attention.
Survival is not Resurrection.
The Disciples Were Transformed
Before the Crucifixion the disciples appear frightened and confused.
Peter denies even knowing Jesus.
The others scatter.
Yet shortly afterward we find the Apostles publicly proclaiming in Jerusalem:
Jesus whom you crucified has been raised.
Something transformed them.
The Resurrection is their explanation.
Again, courage alone does not prove that someone’s belief is true.
But their willingness to suffer does tell us something important:
They genuinely believed what they were preaching.
The hypothesis that the Apostles knowingly invented the Resurrection becomes very difficult to sustain.
Did All the Apostles Die as Martyrs?
Catholic apologetics should be careful here.
We often hear:
“All twelve Apostles were brutally martyred rather than deny the Resurrection.”
The historical evidence is not equally strong for the martyrdom of every individual Apostle.
We have particularly strong early evidence concerning figures such as Peter and Paul, while later traditions describe the deaths of others with varying degrees of historical certainty.
So we do not need to exaggerate.
The stronger argument is simply:
The earliest Apostles endured persecution while continuing publicly to proclaim the risen Christ.
Their behaviour strongly supports their sincerity.
Whether every later martyrdom tradition can be historically established is a separate question.
Resurrection Was Not What They Expected
First-century Jewish belief contained ideas about resurrection.
But the normal expectation concerned a general resurrection associated with the end of the age.
The Christian claim was something startling:
One man had already been raised bodily in the middle of history.
Paul calls Christ:
“the first fruits of those who have fallen asleep.”
— 1 Corinthians 15:20
The disciples did not simply announce:
Jesus’ soul lives with God.
They proclaimed:
The age to come had broken into history because Jesus had been bodily raised.
Something generated that extraordinary conviction.
Christianity Exploded From a Defeat
Consider the situation immediately after Good Friday.
The movement’s leader has been:
Arrested.
Humiliated.
Publicly executed.
From an ordinary human perspective:
The movement should have ended.
A crucified Messiah looked like a failed Messiah.
Yet instead of abandoning Jesus, His followers began proclaiming Him even more radically.
They claimed:
He is alive.
He is Lord.
God raised Him.
He will judge the world.
Within decades, Christian communities existed throughout the Roman world.
The question remains:
What happened?
The Resurrection Explains the Evidence Together
No single fact proves the Resurrection mathematically.
Historical reasoning rarely works that way.
Instead, we ask which explanation best accounts for the evidence collectively:
Jesus was crucified and died.
His followers became convinced that He appeared to them afterward.
The Resurrection proclamation began extremely early.
Peter proclaimed it.
James became a believer and Church leader.
Paul changed from persecutor to Apostle.
The Christian movement exploded around the proclamation that Jesus had conquered death.
The Christian explanation is:
Jesus actually rose from the dead.
The Islamic Problem Becomes Even Greater
This creates a major difficulty for Islam.
Islam does not merely offer a different interpretation of the Resurrection.
The Qur’an denies the event immediately preceding it:
The Crucifixion.
Yet the historical evidence strongly supports Jesus’ execution.
And the earliest Christian evidence shows that belief in His Resurrection was present from the very beginning.
So Christianity asks:
Why should a seventh-century account overturn the testimony emerging from the first-century Apostolic community?
That question becomes especially serious because Islam claims Jesus was genuinely a prophet of God.
If Jesus’ earliest followers immediately misunderstood:
His identity.
His death.
His Resurrection.
then God’s true prophet apparently left behind a movement that almost instantly became corrupted on the most fundamental questions imaginable.
Where, then, was the true message?
Where were Jesus’ faithful followers preserving the later Islamic account?
The historical record does not reveal them.
Christianity Stands Upon This Event
The Catholic faith ultimately does not stand merely upon:
Beautiful churches.
Ancient traditions.
Popes.
Councils.
Philosophy.
It stands first upon Jesus Christ.
And at its centre stands an historical proclamation:
The man who was crucified is alive.
If Christ did not rise, Paul tells us to abandon Christianity.
But if Christ did rise, everything changes.
His claims about Himself must be taken with absolute seriousness.
His Apostles become witnesses to the decisive act of God in history.
And a religion appearing six centuries later cannot simply redefine Jesus without confronting the evidence left by those who actually knew Him.
The Resurrection therefore brings us to the question Islam and Christianity answer very differently:
Who Did Jesus Claim to Be — Prophet, Messiah, or God?
Islam honours Jesus greatly.
The Qur’an calls Him:
The Messiah.
A messenger of God.
The son of Mary.
It even speaks of Him as a Word from God.
So the disagreement between Christianity and Islam is not about whether Jesus was important.
The disagreement is far more fundamental:
Who is Jesus?
Islam says He is a human prophet and Messiah, but not God.
Christianity says He is the eternal Son of God who became man:
Truly God and truly man.
Which view best fits the earliest evidence?
To answer that, we should begin not with later councils or theologians, but with the words and actions attributed to Jesus Himself.
“Before Abraham Was, I Am”
One of Jesus’ most extraordinary statements occurs during a dispute recorded in John’s Gospel.
Jesus says:
“Your father Abraham rejoiced that he was to see my day.”
— John 8:56
His opponents are confused.
Jesus is not yet fifty years old.
How could He have seen Abraham, who lived many centuries earlier?
Then Jesus answers:
“Truly, truly, I say to you, before Abraham was, I am.”
— John 8:58
Notice what He does not say:
“Before Abraham was, I was.”
He says:
“I AM.”
This language strongly echoes God’s revelation to Moses at the burning bush:
“I AM WHO I AM.”
— Exodus 3:14
The reaction of Jesus’ audience is revealing:
“So they took up stones to throw at him.”
— John 8:59
They understood that Jesus was making an extraordinary claim.
“I and the Father Are One”
Later Jesus says:
“I and the Father are one.”
— John 10:30
Again His opponents pick up stones.
Jesus asks why.
They answer:
“Because you, being a man, make yourself God.”
— John 10:33
Whatever interpretation someone ultimately gives the passage, John’s Gospel clearly presents the controversy as concerning Jesus’ divine identity.
The people confronting Him do not respond:
“Thank you for clarifying that you’re merely a prophet.”
They believe He has made a claim belonging to God.
Jesus Forgives Sins
The Synoptic Gospels give us another powerful example.
A paralysed man is brought to Jesus.
Instead of immediately healing him, Jesus says:
“My son, your sins are forgiven.”
— Mark 2:5
The scribes immediately object:
“Who can forgive sins but God alone?”
— Mark 2:7
That question is crucial.
A prophet can announce:
“God has forgiven you.”
But Jesus speaks with personal authority.
Then He performs the miracle specifically to demonstrate:
“that the Son of man has authority on earth to forgive sins.”
— Mark 2:10
Jesus does not correct the underlying principle that sin ultimately belongs to God’s authority.
Instead, He demonstrates that He possesses that authority.
Jesus Claims Authority Over the Sabbath
Jesus also says:
“The Son of man is lord even of the sabbath.”
— Mark 2:28
This is no small claim.
The Sabbath was established by God.
Yet Jesus claims authority over it.
Throughout the Sermon on the Mount we encounter something similar.
Jesus repeatedly says:
“You have heard that it was said…”
followed by:
“But I say to you…”
— Matthew 5
Jesus does not speak merely as another rabbi offering an opinion.
He teaches with astonishing personal authority.
Matthew tells us:
“the crowds were astonished at his teaching, for he taught them as one who had authority.”
— Matthew 7:28–29
Jesus Accepts Worship
This point is particularly important when speaking with Muslims.
Throughout Scripture, worship belongs to God.
When Cornelius falls before Peter:
“Peter lifted him up, saying, ‘Stand up; I too am a man.’”
— Acts 10:26
When John falls before an angel in Revelation, the angel responds:
“You must not do that!… Worship God.”
— Revelation 22:9
Yet Jesus repeatedly receives acts of worship without correcting the worshipper.
After Jesus walks upon the water:
“those in the boat worshiped him, saying, ‘Truly you are the Son of God.’”
— Matthew 14:33
After the Resurrection:
“they came up and took hold of his feet and worshiped him.”
— Matthew 28:9
And when the disciples encounter the risen Christ:
“they worshiped him.”
— Matthew 28:17
If Jesus were merely a human prophet, this would be extraordinary.
True prophets direct worship toward God.
Jesus receives it.
Thomas — “My Lord and My God”
Perhaps the clearest confession occurs after the Resurrection.
Thomas had doubted.
When he finally encounters the risen Jesus, he declares:
“My Lord and my God!”
— John 20:28
Jesus does not respond:
“Thomas, don’t call me God.”
Instead He says:
“Have you believed because you have seen me?”
— John 20:29
John then immediately explains the purpose of his Gospel:
“These are written that you may believe that Jesus is the Christ, the Son of God.”
— John 20:31
Thomas’ confession stands at the climax of John’s Gospel.
“My Lord and my God.”
The Word Was God
And this brings us back to how John began his Gospel:
“In the beginning was the Word, and the Word was with God, and the Word was God.”
— John 1:1
Then:
“All things were made through him.”
— John 1:3
And finally:
“The Word became flesh and dwelt among us.”
— John 1:14
John is not saying that a human prophet gradually became divine.
He says the Word:
Existed in the beginning.
Was with God.
Was God.
Created all things.
Became flesh.
That is the foundation of the Christian doctrine of the Incarnation.
“The Father Is Greater Than I”
A Muslim may respond with passages where Jesus appears subordinate to the Father.
For example:
“The Father is greater than I.”
— John 14:28
Catholics do not ignore this verse.
The doctrine of the Incarnation actually explains why Scripture contains both kinds of passages.
Christianity teaches that Jesus possesses:
A divine nature.
and
A human nature.
The eternal Son truly became man.
Paul says Christ:
“emptied himself, taking the form of a servant, being born in the likeness of men.”
— Philippians 2:7
Jesus can therefore speak from the humility of His incarnate mission without ceasing to possess the divine nature.
In fact, immediately before describing Christ’s self-emptying, Paul says:
“though he was in the form of God, did not count equality with God a thing to be grasped.”
— Philippians 2:6
Christ’s humility does not disprove His divinity.
It is part of the mystery of God becoming man.
“Of That Day or Hour No One Knows”
Another common Muslim objection comes from Mark:
“But of that day or that hour no one knows… nor the Son, but only the Father.”
— Mark 13:32
The objection is understandable:
If Jesus is God, how can He say the Son does not know something?
Again Christianity does not teach that Jesus merely appeared human.
He possessed a genuine human nature and human intellect.
The Incarnation means the eternal Son entered real human existence.
Christians have therefore understood passages such as this within the mystery of His genuine humanity and mission.
But there is something else worth noticing.
Jesus places Himself in an extraordinary sequence:
Men do not know.
Angels do not know.
The Son.
The Father.
A supposedly ordinary prophet has placed the Son above all angels and immediately alongside the Father.
Even passages used against Christ’s divinity often reveal His extraordinary identity.
“Why Do You Call Me Good?”
Another frequently quoted passage is:
“Why do you call me good? No one is good but God alone.”
— Mark 10:18
Sometimes this is presented as though Jesus said:
“I am not God.”
But Jesus never says that.
He asks:
Why do you call me good?
The question can instead force the man to consider the implications of what he has just said.
If:
God alone is truly good,
and:
Jesus is truly good,
then who exactly is standing before him?
The verse cannot simply be turned into a denial Jesus never actually makes.
Jesus Prays to the Father
Muslims also ask:
“If Jesus is God, why does He pray to God?”
This is an important question.
Christianity does not teach that:
Jesus is the Father.
That would be a heresy.
The Trinity teaches:
The Father is God.
The Son is God.
The Holy Spirit is God.
But:
The Father is not the Son.
Jesus’ prayer to the Father therefore does not contradict the Trinity.
And because the Son truly became human, He lived the perfect human relationship of obedience, love and prayer toward the Father.
The Christian claim is not:
God was pretending to be human.
It is:
“The Word became flesh.”
— John 1:14
The Son of Man
Jesus’ favourite title for Himself in the Gospels is:
“Son of Man.”
This can sound like a way of emphasising His humanity.
But its Old Testament background is remarkable.
Daniel sees:
“one like a son of man”
coming:
“with the clouds of heaven.”
— Daniel 7:13
He approaches the Ancient of Days and receives:
“dominion and glory and kingdom.”
And:
“all peoples, nations, and languages should serve him.”
— Daniel 7:14
His dominion is:
“an everlasting dominion.”
This is the background to one of the most dramatic moments of Jesus’ trial.
Jesus Before the High Priest
The high priest asks Jesus:
“Are you the Christ, the Son of the Blessed?”
Jesus answers:
“I am.”
Then:
“you will see the Son of man seated at the right hand of Power, and coming with the clouds of heaven.”
— Mark 14:61–62
Jesus combines imagery from:
Daniel 7
and
Psalm 110.
The high priest responds by tearing his garments and declaring:
“You have heard his blasphemy.”
— Mark 14:64
Why?
Jesus has claimed an extraordinary heavenly authority and placed Himself within imagery associated with God’s divine rule.
This is not the language of:
“I am simply one prophet among many.”
Jesus Claims to Judge the World
Jesus also teaches that He will return and judge humanity.
In Matthew 25:
“When the Son of man comes in his glory, and all the angels with him, then he will sit on his glorious throne.”
— Matthew 25:31
Then:
“Before him will be gathered all the nations.”
— Matthew 25:32
Who judges the nations?
The Son of Man.
Who sits upon the glorious throne?
The Son of Man.
Whose angels accompany Him?
His angels.
The role Jesus claims for Himself is extraordinary.
“That All May Honour the Son”
John records Jesus saying:
“The Father… has given all judgment to the Son.”
Why?
“that all may honor the Son, even as they honor the Father.”
— John 5:22–23
Consider what that means.
Jesus does not say:
Honour me merely as you honour another prophet.
He says:
Honour the Son as you honour the Father.
For a Jewish monotheistic audience, that is an astonishing statement.
Jesus Had Glory Before Creation
In His prayer before the Crucifixion, Jesus says:
“Father, glorify thou me in thy own presence with the glory which I had with thee before the world was made.”
— John 17:5
Jesus claims to have shared glory with the Father:
Before the world existed.
This cannot naturally describe an ordinary human prophet.
Jesus claims pre-existence.
And not merely existence.
Glory with God before creation.
This Was Not Invented at Nicaea
A common claim is that Jesus’ divinity was invented at the Council of Nicaea in AD 325.
Historically, that does not work.
Nicaea did not suddenly decide:
“Let’s turn Jesus into God.”
The council met precisely because Christians already worshipped Christ and believed in His divinity, but a controversy had arisen concerning how the Son relates eternally to the Father.
Long before Nicaea, we have:
The New Testament.
Ignatius of Antioch.
Justin Martyr.
Irenaeus.
and other early Christian witnesses speaking about Christ in extraordinarily exalted and divine terms.
Ignatius, writing around AD 107, even refers to:
“our God, Jesus Christ.”
That is more than two centuries before Nicaea.
Even Earlier — Paul
We do not even need to reach the second-century Fathers.
Paul writes in the first century.
In Philippians he preserves an early Christian hymn concerning Christ:
“though he was in the form of God…”
Christ then humbles Himself and becomes obedient unto death.
Afterward God exalts Him so that:
“at the name of Jesus every knee should bow.”
— Philippians 2:6–10
This language echoes Isaiah:
“To me every knee shall bow.”
— Isaiah 45:23
In Isaiah, the speaker is the LORD.
Yet Paul applies this language to Jesus.
And Paul was writing approximately three centuries before Nicaea.
What About “Son of God”?
Islam strongly rejects the idea that God has a son.
But again we must define Christian doctrine accurately.
Christianity does not teach:
God had sexual relations with Mary.
God physically produced a child.
Jesus is a biological offspring of God.
The Son’s relationship with the Father is eternal, not sexual or biological.
The Nicene Creed expresses it:
“Begotten, not made.”
The Son did not begin to exist at Bethlehem.
The eternal Son became man at Bethlehem.
That is completely different from the idea of God physically fathering a child.
An Interesting Qur’anic Description of Jesus
The Qur’an itself gives Jesus unusual titles.
It calls Him:
The Messiah.
and describes Him as:
“His word which He directed to Mary and a spirit from Him.”
— Qur’an 4:171
Christians should be careful not to claim that this verse proves the Christian doctrine of the Logos.
Muslims interpret these expressions very differently.
But it is nevertheless striking that Jesus receives distinctive titles within the Qur’an itself.
The Christian argument does not depend upon trying to force Christian theology into the Qur’an.
Our primary evidence comes from the much earlier Christian sources.
Which Jesus Is Historically Earlier?
This brings us to the central historical question.
First-century Christianity:
Jesus is crucified.
Jesus rises.
Jesus forgives sins.
Jesus receives worship.
Jesus claims pre-existence.
Jesus claims authority to judge humanity.
Jesus is confessed as Lord and God.
Seventh-century Islam:
Jesus was a prophet and Messiah.
He was not divine.
He was not the Son of God.
He was not crucified.
The Islamic account appears approximately six centuries later.
So the Christian asks:
What historical reason is there to replace the earlier testimony with the later account?
That question cannot be answered merely by assuming beforehand that Muhammad received revelation.
Whether Muhammad actually received revelation is precisely one of the claims that must be tested.
The Question Jesus Asked
Ultimately, this debate returns to Jesus’ own question:
“Who do you say that I am?”
— Matthew 16:15
Peter answers:
“You are the Christ, the Son of the living God.”
— Matthew 16:16
Thomas goes further after encountering the risen Christ:
“My Lord and my God!”
— John 20:28
Christianity did not gradually discover centuries later that Jesus should be treated as divine.
The roots of that belief lie within the earliest Christian testimony.
Jesus does not fit comfortably into the category:
“Merely another prophet.”
He speaks with God’s authority.
He forgives sins.
He receives worship.
He claims pre-existence.
He identifies Himself with Daniel’s heavenly Son of Man.
He claims universal judgment.
He commands that the Son be honoured as the Father is honoured.
And His earliest followers worship Him as Lord.
If that testimony is true, Islam’s understanding of Jesus cannot be true.
And this leads directly to the doctrine Islam perhaps attacks more explicitly than any other Christian belief:
The Trinity — Do Christians Really Believe in Three Gods?
One of the strongest Islamic objections to Christianity concerns the Trinity.
The Qur’an repeatedly emphasises that God is one:
“Say, ‘He is Allah, One.’”
— Qur’an 112:1
Christians agree completely that there is one God.
The Bible begins:
“Hear, O Israel: The LORD our God is one LORD.”
— Deuteronomy 6:4
Jesus Himself repeats this command:
“The Lord our God, the Lord is one.”
— Mark 12:29
So the disagreement between Christianity and Islam is not:
Islam believes in one God.
Christianity believes in three gods.
Christianity has always rejected belief in three gods.
The actual Christian claim is:
There is one God who eternally exists as three distinct Persons — Father, Son and Holy Spirit.
One divine Being.
Three divine Persons.
Understanding that distinction is essential before the Trinity can be fairly criticised.
One What — Three Whos
A simple way of beginning is to ask two different questions:
What is God?
God is the one divine Being.
Who is God?
The Father.
The Son.
The Holy Spirit.
Christians are not claiming:
One God = Three Gods.
That would be contradictory.
Nor are we claiming:
One Person = Three Persons.
That would also be contradictory.
We are saying:
One Being — Three Persons.
There is nothing logically contradictory about something being one in one respect and three in another respect.
The mystery is how the one divine nature exists eternally in three Persons.
But mystery and contradiction are not the same thing.
The Father Is God
Scripture clearly identifies the Father as God.
Jesus says:
“Father… this is eternal life, that they know thee the only true God, and Jesus Christ whom thou hast sent.”
— John 17:1–3
Paul repeatedly refers to:
“God our Father.”
— Philippians 1:2
There is no dispute here.
The Father is God.
But Scripture does not stop there.
The Son Is God
We have already examined many passages concerning Christ.
John writes:
“In the beginning was the Word, and the Word was with God, and the Word was God.”
— John 1:1
Then:
“The Word became flesh.”
— John 1:14
Thomas addresses Jesus:
“My Lord and my God!”
— John 20:28
Paul writes:
“In him the whole fullness of deity dwells bodily.”
— Colossians 2:9
Hebrews says concerning the Son:
“Thy throne, O God, is for ever and ever.”
— Hebrews 1:8
So:
The Father is God.
The Son is God.
Yet the Father and Son are clearly not the same Person.
The Son speaks to the Father.
The Father sends the Son.
The Son loves the Father.
Christianity therefore cannot simply say:
Jesus is another name for the Father.
That is not biblical Christianity.
The Holy Spirit Is God
Then we encounter the Holy Spirit.
In Acts, Peter confronts Ananias:
“Why has Satan filled your heart to lie to the Holy Spirit?”
— Acts 5:3
Peter then says:
“You have not lied to men but to God.”
— Acts 5:4
The Holy Spirit also performs actions associated with a Person, not merely an impersonal force.
The Spirit:
Speaks.
Teaches.
Guides.
Can be grieved.
Sends ministers.
Jesus says:
“The Counselor, the Holy Spirit… he will teach you all things.”
— John 14:26
Paul warns:
“Do not grieve the Holy Spirit of God.”
— Ephesians 4:30
So Scripture reveals:
The Father is God.
The Son is God.
The Holy Spirit is God.
But Scripture simultaneously insists:
There is only one God.
That biblical data is what produced Trinitarian theology.
The Church did not invent the Trinity and then force it into Scripture.
The doctrine developed as Christians attempted to express everything Scripture revealed about God without abandoning monotheism.
Father, Son and Holy Spirit Together
One of the clearest passages occurs at the end of Matthew.
Jesus commands:
“Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit.”
— Matthew 28:19
Notice something important.
Jesus says:
“in the name”
singular.
Not:
“in the names.”
Then He names:
Father.
Son.
Holy Spirit.
One divine name.
Three Persons.
The verse does not by itself provide the later theological vocabulary of Nicaea and Constantinople.
But the Trinitarian structure is unmistakable.
The Baptism of Jesus
The Baptism of Jesus also reveals the three Persons simultaneously.
Jesus is standing in the Jordan.
The Holy Spirit descends upon Him.
The Father’s voice comes from Heaven:
“This is my beloved Son, with whom I am well pleased.”
— Matthew 3:17
This is important because it rules out the idea that Father, Son and Spirit are merely three temporary masks worn by one divine Person.
At the Baptism:
The Son is in the water.
The Spirit descends.
The Father speaks.
They are distinct.
Yet Christianity remains absolutely monotheistic.
Paul Gives the Same Pattern
Paul closes 2 Corinthians with:
“The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all.”
— 2 Corinthians 13:14
Again:
Jesus Christ.
God the Father.
Holy Spirit.
This pattern appears naturally within first-century Christian worship and teaching.
The Trinity was not suddenly inserted into Christianity three hundred years later.
Did Constantine Invent the Trinity?
This claim is common but historically false.
The Council of Nicaea met in AD 325.
Emperor Constantine called the council, but Constantine did not invent Christian belief in Christ’s divinity.
The controversy existed precisely because Christians were debating how to explain the relationship between the Father and the Son.
A priest named Arius argued that the Son did not possess the same eternal divine nature as the Father.
The Church rejected this.
The bishops confessed that the Son is:
“God from God, Light from Light, true God from true God.”
and:
“begotten, not made.”
The council was defining terminology in response to a controversy.
It was not creating Jesus’ divinity from nothing.
Christians Believed This Before Nicaea
We can prove that easily.
Around AD 107, more than two centuries before Nicaea, Ignatius of Antioch writes expressions such as:
“our God, Jesus Christ.”
Justin Martyr, in the second century, discusses the Father, Son and prophetic Spirit.
Irenaeus speaks extensively about Father, Son and Holy Spirit.
And long before any of these Fathers, the New Testament itself contains the foundations.
So the historical sequence is:
New Testament — first century.
Ignatius — early second century.
Justin and Irenaeus — second century.
Nicaea — AD 325.
Nicaea did not create the belief.
It defined it more precisely.
What Does the Qur’an Reject?
The Qur’an says:
“Do not say, ‘Three.’”
— Qur’an 4:171
And:
“They have certainly disbelieved who say, ‘Allah is the third of three.’”
— Qur’an 5:73
A Christian can readily agree with one possible meaning of that criticism:
God is not one god among three gods.
There is no:
God number one.
God number two.
God number three.
The Father, Son and Holy Spirit are not three separate divine beings forming a committee.
Christianity calls that tritheism.
And Christianity rejects it.
Does the Qur’an Understand the Trinity Correctly?
Here we encounter a more difficult passage.
Qur’an 5:116 portrays God asking Jesus:
“Did you say to the people, ‘Take me and my mother as gods besides Allah?’”
Jesus denies doing so.
Christians agree with Jesus’ denial.
Mary is not God.
Mary is not part of the Trinity.
Christians must never worship Mary as a goddess.
But the passage creates an important apologetic question.
Why does the Qur’an mention:
God.
Jesus.
Mary
in a context concerning people taking figures as gods?
Some Christian apologists argue that this demonstrates that the Qur’an misunderstood the Christian Trinity as:
Father, Jesus and Mary.
We need to be careful with that claim.
The verse does not explicitly say:
“The Christian Trinity consists of Allah, Jesus and Mary.”
Muslim interpreters therefore reject that reading and argue that the verse condemns excessive devotion or deification of Mary rather than defining the Trinity.
So it would be unfair to claim Qur’an 5:116 unambiguously identifies Mary as the third Person of the Trinity.
But the passage still raises a legitimate question about the Qur’an’s representation of Christian belief, particularly when read alongside its other criticisms of Christian doctrine.
A strong apologetic argument should acknowledge that distinction.
Christians Do Not Believe God Had a Wife
Another Qur’anic criticism concerns divine sonship:
“How could He have a son when He does not have a companion?”
— Qur’an 6:101
But Christianity does not reason:
God + Mary = Jesus.
That is not the doctrine of the Trinity.
Mary is a human creature.
The Son existed eternally before Mary existed.
John says:
“In the beginning was the Word.”
— John 1:1
And Jesus says:
“Glorify thou me… with the glory which I had with thee before the world was made.”
— John 17:5
Christian divine sonship therefore has nothing to do with God needing a female partner.
The eternal Son did not originate through physical reproduction.
“Begotten, Not Made”
This is why the Nicene Creed uses such careful language.
Jesus Christ is:
“Begotten, not made.”
The Son is not a creature.
Nor did the Father exist for some period without the Son and then produce Him.
The relationship is eternal.
There was never a time when:
The Father existed but the Son did not.
God eternally exists as:
Father.
Son.
Holy Spirit.
This is difficult to comprehend completely.
But Christianity does not expect the infinite nature of God to fit entirely within the human mind.
Is the Trinity Illogical?
Sometimes the objection is:
“One plus one plus one equals three.”
True.
But the Trinity is not:
1 God + 1 God + 1 God = 1 God.
That would indeed be nonsense.
Christian theology says there is one indivisible divine nature wholly possessed by the three Persons.
The Father is not one-third God.
The Son is not one-third God.
The Holy Spirit is not one-third God.
Each Person possesses fully the one divine nature.
Again:
One Being.
Three Persons.
The doctrine is mysterious.
It is not a mathematical contradiction.
Analogies Can Become Dangerous
Christians often try to explain the Trinity using analogies.
Water as ice, liquid and steam.
An egg with shell, white and yolk.
A three-leaf clover.
These may initially sound helpful, but each can become misleading.
Water changing between forms can suggest that God is one Person appearing in different modes.
The egg suggests that each Person is merely one part of God.
Neither is orthodox Trinitarianism.
The Trinity is unique.
There is no created object that perfectly reproduces the inner life of God.
So sometimes the safest explanation remains:
One divine nature.
Three distinct divine Persons.
Does “Mystery” Mean We Cannot Explain Anything?
No.
Calling the Trinity a mystery does not mean:
“It makes no sense, so stop asking questions.”
Christian theology can say a great deal about the Trinity.
We can know:
There is one God.
The Father is God.
The Son is God.
The Holy Spirit is God.
The Father is not the Son.
The Son is not the Spirit.
The Spirit is not the Father.
The three Persons are not three gods.
What we cannot do is comprehend exhaustively how the infinite divine Being exists.
That should hardly be surprising.
If God could be completely contained within the human intellect, He would not be much of a God.
Is the Word “Trinity” in the Bible?
No.
The English word Trinity does not appear in Scripture.
But that does not settle anything.
The question is not:
Is the later theological term present?
The question is:
Is the reality described by that term present?
The word Incarnation is not used as a biblical label either.
Yet Scripture says:
“The Word became flesh.”
Likewise, Trinity is theological vocabulary developed to describe the biblical revelation of:
Father.
Son.
Holy Spirit.
within the one God.
The early Christian writer Tertullian, around the beginning of the third century, famously used the Latin Trinitas while explaining Christian belief.
Again, this predates Nicaea.
Islam’s Simpler Doctrine Does Not Make It Truer
Islamic tawhid — the absolute oneness of God — may initially appear conceptually simpler.
But simplicity by itself does not determine truth.
The question is:
How has God actually revealed Himself?
If Jesus truly rose from the dead…
If Jesus truly claimed divine authority…
If His Apostles worshipped Him…
If the Holy Spirit is revealed as divine…
then we must account for all of that evidence while still affirming biblical monotheism.
The doctrine of the Trinity arose precisely because the earliest Christians refused to abandon either truth:
There is only one God.
and:
Father, Son and Holy Spirit are revealed as divine.
Christianity Remains Monotheistic
The Christian does not worship:
Three creators.
Three eternal beings.
Three competing wills.
Three gods.
The Creed begins:
“I believe in one God.”
Everything that follows explains the identity of that one God.
The Father is God.
The Son is eternally begotten of the Father.
The Holy Spirit eternally proceeds.
The mystery is not that Christianity abandoned monotheism.
It is that Christians believe God revealed something about His inner life that human reason alone could never have discovered.
The Question for Islam
Islam appears approximately six centuries after Christ and rejects the Trinity.
But the historical evidence shows that the Christian understanding of Father, Son and Holy Spirit was not created in response to Islam.
Its foundations are present:
In the New Testament.
In Christian Baptism.
In Christian worship.
In the earliest Church Fathers.
Centuries before Muhammad.
Therefore the Christian asks again:
On what historical basis should the Apostolic understanding of God be replaced by a seventh-century denial?
That question becomes even more important when we examine Muhammad himself.
Because Islam ultimately asks Christians to believe that the Apostolic Church became profoundly mistaken about Jesus — and that God corrected Christianity centuries later through a new prophet.
So the next question is unavoidable:
Islam ultimately rests upon a claim about Muhammad.
Muslims believe that Muhammad was the final prophet of God and that the Qur’an was revealed to him through the angel Gabriel.
For a Christian examining Islam, the question is not whether Muslims sincerely believe this.
The question is:
What reason do we have to believe Muhammad was genuinely sent by God?
Christianity does not teach that every person claiming revelation should automatically be believed.
Scripture explicitly commands us to test religious claims.
St. John writes:
“Beloved, do not believe every spirit, but test the spirits to see whether they are of God.”
— 1 John 4:1
St. Paul gives an even more striking warning:
“Even if we, or an angel from heaven, should preach to you a gospel contrary to that which we preached to you, let him be accursed.”
— Galatians 1:8
That passage is especially relevant to Islam.
A later claim involving an angel does not automatically override the Gospel already delivered by the Apostles.
The message itself must be tested.
Muhammad Appears Six Centuries After Jesus
Muhammad was born around AD 570, more than five centuries after the Apostolic age.
According to Islamic tradition, he began receiving revelations around AD 610.
By then Christianity had existed for almost six centuries.
Long before Muhammad, Christians already possessed:
The four Gospels.
Paul’s letters.
The other New Testament writings.
Ancient biblical manuscripts.
Creeds.
Liturgies.
Writings of the Church Fathers.
And Christians throughout different regions already confessed:
Jesus is the Son of God.
Jesus was crucified.
Jesus rose from the dead.
Father, Son and Holy Spirit.
Then Muhammad proclaimed a message contradicting several of these central Christian beliefs.
That creates an immediate problem.
A Later Prophet Cannot Simply Rewrite Earlier History
Imagine someone appeared today claiming divine revelation and announced:
Julius Caesar was never assassinated.
We would reasonably ask:
What evidence supports this?
The claim would not become historically stronger simply because the person said an angel revealed it.
The same principle applies when Muhammad’s message contradicts earlier evidence concerning Jesus.
The Qur’an says:
“They did not kill him, nor did they crucify him.”
— Qur’an 4:157
But as we have already seen, the Crucifixion is attested:
In first-century Christian sources.
Across independent Gospel traditions.
In Paul’s letters.
In early Christian writers.
By non-Christian historical testimony.
So before accepting Muhammad as a prophet, the Christian can reasonably ask:
Why should a seventh-century revelation claim overturn first-century historical evidence?
The Biblical Test of a Prophet
The Old Testament itself warns Israel about false prophets.
Deuteronomy says that if a prophet encourages God’s people to follow other gods, they must reject him even if an impressive sign accompanies his message.
— Deuteronomy 13:1–5
The principle is important:
A later religious claim cannot overturn revelation God has already given.
Likewise, Deuteronomy 18 warns about someone speaking falsely in God’s name.
So Christianity already possesses a framework for evaluating later prophetic claims.
The question is not merely:
Did Muhammad believe he was receiving revelation?
The question is:
Is his message consistent with what God had already revealed?
Paul Gives Christians an Explicit Warning
Galatians is especially significant.
Paul writes:
“Even if we, or an angel from heaven, should preach to you a gospel contrary to that which we preached to you, let him be accursed.”
— Galatians 1:8
Notice how strong this is.
Paul does not say:
“Accept a later message if an impressive spiritual being delivers it.”
He says almost the opposite.
Even:
An Apostle
or:
An angel from heaven
must be rejected if the message contradicts the Gospel already received.
For Christians, therefore, the claim that Muhammad received revelation through Gabriel cannot by itself establish Islam.
The content must be tested against the Apostolic Gospel.
What Was the Apostolic Gospel?
Paul tells us.
“Christ died for our sins… he was buried… he was raised on the third day.”
— 1 Corinthians 15:3–4
This was written centuries before Islam.
Yet the Qur’an denies Jesus’ Crucifixion.
So from the Christian perspective, the later message fails a fundamental test:
It contradicts the Gospel already delivered.
A Christian therefore cannot accept Muhammad merely because he claimed prophetic authority.
Doing so would require rejecting the Apostolic testimony Christianity had possessed for centuries.
Did Jesus Predict Muhammad?
Muslim apologists sometimes argue that Jesus Himself predicted Muhammad.
One passage frequently discussed is Jesus’ promise of the Paraclete in John’s Gospel.
Jesus says:
“I will pray the Father, and he will give you another Counselor, to be with you for ever.”
— John 14:16
Some Muslim arguments identify this promised figure with Muhammad.
But the text itself tells us who the Paraclete is.
Jesus says:
“The Counselor, the Holy Spirit, whom the Father will send in my name…”
— John 14:26
The identification is explicit:
The Paraclete is the Holy Spirit.
Not Muhammad.
The Paraclete Was Already With the Disciples
Jesus also says:
“You know him, for he dwells with you, and will be in you.”
— John 14:17
That description does not naturally fit Muhammad, who would be born more than five centuries later.
Jesus also tells the Apostles that the Spirit will:
Teach them.
Remind them of Jesus’ words.
Testify to Christ.
Guide them into truth.
And in Acts, the promised Holy Spirit comes upon the Apostles at Pentecost.
The New Testament itself therefore identifies the fulfilment.
There is no need to wait six centuries for another human prophet.
What About Deuteronomy 18?
Another common Islamic argument concerns Moses’ prophecy:
“I will raise up for them a prophet like you from among their brethren.”
— Deuteronomy 18:18
Muslims sometimes argue that this prophet is Muhammad.
But the New Testament explicitly applies the prophecy to Jesus.
Peter quotes it in Acts:
“Moses said, ‘The Lord God will raise up for you a prophet from your brethren as he raised me up.’”
— Acts 3:22
Peter’s sermon identifies Jesus as the fulfilment.
Stephen later quotes the same prophecy in a speech centred upon Christ.
— Acts 7:37
So once again, the earliest Christian interpretation predates Islam by centuries.
“From Their Brethren”
Some Muslim apologists focus upon the phrase:
“from among their brethren”
and argue that it refers to Israel’s Ishmaelite relatives.
But the surrounding context repeatedly uses language of Israel’s “brothers” or “brethren” for fellow Israelites.
Deuteronomy itself speaks of choosing a king:
“from among your brethren.”
— Deuteronomy 17:15
That clearly refers to someone from Israel.
So the phrase does not require an Ishmaelite prophet.
And the New Testament directly identifies the prophecy with Christ.
What About the Song of Songs?
Occasionally Song of Songs 5:16 is presented as containing Muhammad’s name because the Hebrew word maḥămaddîm sounds somewhat like “Muhammad.”
This argument does not work linguistically.
The Hebrew word is an ordinary descriptive term meaning something like:
Lovely.
Desirable.
Delightful.
It appears in grammatical contexts elsewhere in the Hebrew Bible where it clearly functions as a common word rather than a personal name.
And the Song of Songs passage is poetry describing the beloved.
It is not a prophecy naming a seventh-century Arabian prophet.
Sound similarity is not enough to establish prophetic prediction.
Did Muhammad Perform Miracles?
The Qur’an presents Muhammad primarily as a warner and messenger whose great sign is the revelation itself.
When opponents demand signs, several Qur’anic passages respond by emphasising his role as a messenger.
For example:
“I am only a clear warner.”
— compare Qur’an 29:50
Later Islamic tradition attributes numerous miracles to Muhammad, including the famous splitting of the moon.
Catholics should distinguish carefully between:
What the Qur’an itself says
and
What later hadith literature reports.
That distinction matters historically.
Jesus and Muhammad Are Presented Very Differently
Interestingly, the Qur’an itself attributes remarkable miracles to Jesus.
Jesus says:
“I heal the blind and the leper, and I give life to the dead — by Allah’s permission.”
— Qur’an 3:49
The Qur’an also describes Jesus creating the form of a bird from clay and, by God’s permission, bringing it to life.
Muslims correctly emphasise:
“By God’s permission.”
The Qur’an is not presenting Jesus as independently exercising divine power.
Nevertheless, the contrast is striking.
Even within Islamic Scripture, Jesus occupies an extraordinary position.
The Moral Test
Prophetic claims can also be examined morally.
Jesus teaches:
“You will know them by their fruits.”
— Matthew 7:16
This does not mean that every genuine prophet must be sinless.
The Bible itself records serious sins committed by important figures.
But if someone claims to bring God’s definitive revelation, it is reasonable to examine:
His teaching.
His conduct.
His use of authority.
His treatment of enemies.
His relationships.
Whether claimed revelations appear to serve personal interests.
These are legitimate historical and moral questions.
But they should be handled carefully and accurately.
Avoid Weak Attacks on Muhammad
Christian apologetics sometimes becomes unnecessarily sensational.
Every hostile story about Muhammad found on the internet is repeated as though it were equally historically certain.
That is poor apologetics.
Islamic sources themselves vary in age and reliability.
Hadith collections contain complicated chains of transmission and classifications.
Muslim scholars themselves distinguish between stronger and weaker reports.
Therefore, if we examine controversial aspects of Muhammad’s life, we should rely primarily upon:
The Qur’an.
Major early Islamic sources.
Hadith regarded as authoritative within mainstream Sunni Islam when relevant.
And we should distinguish clearly between:
What the Qur’an says.
What hadith says.
What later biographies say.
The case for Christianity does not require exaggeration.
Muhammad’s Marriages and Personal Revelations
Nevertheless, some passages deserve examination because the Qur’an itself connects revelation with Muhammad’s personal circumstances.
Qur’an 33 contains regulations concerning Muhammad’s marriages that differ in certain respects from those applying to ordinary Muslim men.
Qur’an 33:50 tells Muhammad of women made lawful specifically for him and includes privileges connected with marriage.
Later in the same chapter, Qur’an 33:53 gives detailed instructions concerning behaviour inside the Prophet’s household.
A critic may reasonably ask:
Why does an eternal revelation for humanity contain divine regulations dealing so specifically with Muhammad’s domestic circumstances?
A Muslim can respond that prophets lead communities and therefore revelation naturally addresses events within their lives.
That response should be acknowledged.
The existence of personally relevant revelation does not by itself prove false prophecy.
But when evaluating the overall prophetic claim, these passages form part of the evidence to consider.
Zayd and Zaynab
One particularly controversial episode concerns Zayd ibn Harithah and Zaynab bint Jahsh.
Zayd had been regarded as Muhammad’s adopted son.
After Zayd and Zaynab’s marriage ended, Muhammad married Zaynab.
Qur’an 33:37 discusses the episode and connects the marriage with abolishing a social restriction concerning the former wives of adopted sons.
The Qur’an presents a theological and legal reason for what occurred.
Muslim interpretation therefore sees the event as correcting pre-Islamic assumptions about adoption.
Critics have questioned the personal circumstances surrounding the episode.
Here again, we should distinguish:
What the Qur’an explicitly says
from
Embellishments appearing in later narratives.
The strongest Christian case does not depend upon sensationalising the story.
What About Aisha?
Another highly controversial subject concerns Muhammad’s marriage to Aisha.
Major Sunni hadith collections, including Sahih al-Bukhari and Sahih Muslim, contain reports traditionally understood to say that Aisha was six at betrothal and nine when the marriage was consummated.
Some modern Muslim writers challenge that chronology and argue from other historical calculations that she was older.
So accuracy requires us to say:
The traditional Sunni sources give the younger age, while some modern Muslim apologists dispute that traditional chronology.
A Christian may certainly raise moral questions about the traditional account.
But again, the truth of Christianity should not be made dependent upon this one argument.
Even if the disputed age question disappeared entirely, the central theological problems would remain.
The Central Test Is Still the Message
This is crucial.
The strongest Christian objection to Muhammad is not:
“Muhammad did something I personally dislike.”
It is much deeper.
Muhammad’s message contradicts revelation that historically predates him.
The Apostolic Gospel says:
Jesus is the Son of God.
Jesus was crucified.
Jesus rose bodily.
Jesus is Lord.
Islam later says:
Jesus is not God’s divine Son.
Jesus was not crucified.
Christian beliefs concerning His divinity are wrong.
Therefore the Christian asks:
What evidence justifies abandoning the earlier Apostolic witness for Muhammad’s later claim?
That is the central issue.
The Contrast With Jesus
There is also a striking contrast between how Christianity and Islam originate.
Jesus:
Claims no earthly kingdom.
Commands love of enemies.
Accepts suffering.
Goes willingly to the Cross.
Tells Peter to put away his sword.
Dies apparently defeated.
Then His followers proclaim:
He has risen.
Christianity initially spreads through preaching, conversion, persecution and martyrdom.
Muhammad’s career develops differently.
Islamic tradition presents him not only as:
Prophet.
but eventually as:
Political ruler.
Lawgiver.
Military leader.
That does not automatically prove that Muhammad was false.
Biblical figures could exercise political or military authority.
But it means the lives and claims of Jesus and Muhammad should not simply be treated as equivalent examples of religious founders.
Which One Has Greater Authority?
For Christians the answer ultimately depends upon the Resurrection.
If Jesus truly rose from the dead, His authority is unique.
Muhammad appears centuries afterward and contradicts the Apostolic testimony concerning Him.
So the Christian does not judge Jesus by Muhammad.
We judge Muhammad’s claims in light of Jesus.
Paul’s warning becomes particularly powerful:
“Even if we, or an angel from heaven, should preach to you a gospel contrary to that which we preached to you, let him be accursed.”
— Galatians 1:8
Christianity already possessed its Gospel.
The Gospel was publicly preached.
It was written.
It was preserved.
Christians were dying for it centuries before Muhammad was born.
A later claim of angelic revelation cannot simply erase it.
The Question Islam Must Answer
Islam asks the Christian to believe something extraordinary:
Jesus was a true prophet.
But His earliest followers became profoundly wrong about His identity.
The Apostles proclaimed His Crucifixion.
But He was never crucified.
Christians worshipped Him as Lord.
But this was a catastrophic theological error.
The Church spread across nations.
But the authentic message was lost.
The Scriptures continued to exist.
But their central Christian testimony could no longer be trusted.
Then, approximately six centuries later:
Muhammad restored the truth.
That is an enormous historical claim.
And enormous claims require evidence.
Before accepting it, the Christian is entitled to ask:
Where was the original Islamic form of Christianity during those six centuries?
Where are its Scriptures?
Where are its Apostolic witnesses?
Where are its churches?
Where is the historical chain connecting Jesus to Muhammad’s understanding of Jesus?
This leads to one of the most serious historical questions Islam faces:
Was Christianity Corrupted — And If So, When Did the True Gospel Disappear?
A common Muslim response to Christianity is straightforward:
“Jesus originally taught Islam, but Christians corrupted His message.”
According to this view, Jesus was a true prophet who preached submission to the one God.
He did not claim to be God.
He did not teach the Trinity.
The original Gospel was true revelation.
But sometime after Jesus, His followers changed His teachings, elevated Him to divinity and produced the Christianity we know today.
Then, centuries later, Muhammad restored the original message.
If that happened, it would answer many of the problems we have examined.
But it creates another enormous historical question:
When did it happen?
Because if Christianity was corrupted, there should be some point in history at which we can distinguish:
The original teaching of Jesus
from
The later corrupted Christianity.
And the closer we move toward the Apostles, the harder that becomes.
Start With the First Century
Jesus was crucified around AD 30–33.
Paul’s letters begin appearing roughly two decades later.
That is extremely early historically.
And what does Paul already believe?
He proclaims:
Jesus was crucified.
Jesus died for our sins.
Jesus rose from the dead.
Jesus is Lord.
Jesus existed before His earthly life.
Christians are baptised into Christ.
Christians celebrate the Eucharist.
This is not medieval Catholicism.
This is the first generation of Christianity.
“Christ Died for Our Sins”
Paul tells the Corinthians:
“Christ died for our sins in accordance with the scriptures.”
— 1 Corinthians 15:3
And he says this teaching was something he himself had received.
That means the tradition is earlier than the letter.
Paul continues:
“He was buried… he was raised on the third day.”
— 1 Corinthians 15:4
So already, very close to the beginning, Christianity centres upon:
Death and Resurrection.
Yet Islam later denies that Jesus was crucified at all.
If Christianity was corrupted, therefore, the corruption must have occurred extremely early.
Paul Did Not Invent Christianity in Isolation
Sometimes the argument shifts:
“Paul corrupted Jesus’ original religion.”
This is one of the most common theories.
But historically it does not solve the problem.
Paul personally knew the leaders of the Jerusalem Church.
He writes:
“I went up to Jerusalem to visit Cephas and remained with him fifteen days.”
— Galatians 1:18
Cephas is Peter.
Paul also met:
“James the Lord’s brother.”
— Galatians 1:19
Later Paul describes:
James.
Cephas.
John.
as:
“pillars.”
— Galatians 2:9
These were not Paul’s distant followers.
They belonged to the earliest Jerusalem Church.
Peter and Paul Agreed on the Central Gospel
Peter and Paul certainly had disagreements.
Galatians itself records Paul publicly confronting Peter concerning his behaviour toward Gentile Christians.
— Galatians 2:11–14
That is important evidence because Paul does not hide conflict.
Yet what is their disagreement about?
Not:
Whether Jesus was crucified.
Not:
Whether Jesus rose.
Not:
Whether Jesus was Messiah.
Not:
Whether Jesus was Lord.
The controversy concerns how Jewish and Gentile Christians should live together.
The central Christian proclamation is already shared.
So blaming Paul for inventing the death and Resurrection of Jesus does not fit the evidence.
Paul Preserves Traditions Older Than Paul
This point is crucial.
Scholars identify passages in Paul’s letters that appear to preserve Christian formulas, hymns or traditions that Paul received rather than invented.
The most famous is 1 Corinthians 15.
Another important passage is Philippians 2:
“Though he was in the form of God…”
Christ humbles Himself:
“taking the form of a servant.”
He becomes obedient:
“unto death, even death on a cross.”
Then:
“at the name of Jesus every knee should bow.”
— Philippians 2:6–10
The language echoes Isaiah 45, where every knee bows to the LORD.
This means an extraordinarily exalted understanding of Jesus existed very early.
The idea that Jesus’ divinity suddenly appeared at Nicaea three centuries later simply does not fit the historical evidence.
Then We Reach the Gospels
Mark is generally regarded as the earliest surviving canonical Gospel.
Matthew and Luke follow.
John is usually dated later in the first century.
All four proclaim:
Jesus was crucified.
All four portray Him as:
Messiah.
All four proclaim His Resurrection.
And even the Synoptic Gospels — sometimes contrasted with John’s more explicit language — give Jesus extraordinary divine authority.
Jesus:
Forgives sins.
Claims lordship over the Sabbath.
Commands nature.
Receives worship.
Claims authority to judge humanity.
Identifies Himself with Daniel’s heavenly Son of Man.
So removing John’s Gospel does not produce an Islamic Jesus.
How Early Must the Corruption Be?
We therefore have a serious chronological problem.
If Jesus’ original teaching resembled Islam, then corruption must have happened:
Before Paul’s earliest letters.
Before the traditions Paul received.
Before the canonical Gospels.
Before Christianity spread throughout the Roman world.
And somehow among the very generation connected with Jesus Himself.
We are being asked to believe that the authentic message of Jesus disappeared almost immediately.
But where is the evidence?
Where Are the Original Muslim-Like Christians?
This is perhaps the most important question.
If Jesus taught something essentially equivalent to Islam, we should expect to find early followers saying things such as:
Jesus was merely a human prophet.
Jesus was not crucified.
Jesus did not rise from the dead.
Calling Jesus divine is a corruption.
The Trinity is false.
Christians should await a final Arabian prophet.
Where is this community?
Where are its first-century writings?
Where is its version of the Gospel?
Where are its bishops?
Where is its historical succession?
The surviving evidence from the earliest Christians does not reveal such a movement preserving what later becomes the Islamic understanding of Jesus.
What About the Ebionites?
Muslim apologists sometimes appeal to groups such as the Ebionites.
The Ebionites appear to have been Jewish Christians who rejected certain beliefs held by the developing mainstream Church and possessed a lower Christology.
At first glance this may appear helpful to Islam.
But there are serious problems.
The Ebionites were not Muslims before Muhammad.
Different reports about them indicate beliefs that do not simply correspond to Islam.
And most importantly:
They still appear to have believed Jesus was crucified.
A group disagreeing with orthodox Christianity about Jesus’ divinity does not automatically become evidence for the complete Islamic account.
To establish the Islamic corruption theory, we would need much more:
A historically early community preserving the actual theological package later taught by Islam.
The evidence does not provide that.
What About the Gnostics?
Other early groups held unusual beliefs about Jesus.
Some Gnostics distinguished the spiritual Christ from the physical Jesus.
Some denied that Christ truly suffered in the ordinary human sense.
Others produced alternative Gospels.
But again:
Gnosticism is not Islam.
Gnostic systems often taught ideas Islam would strongly reject:
Multiple divine emanations.
Secret saving knowledge.
Radical distinctions between spirit and matter.
Complicated heavenly beings.
Finding an ancient heresy that disagrees with orthodox Christianity does not establish that Islam represents original Christianity.
Heresies Actually Strengthen the Historical Question
There is something revealing about early Christian controversies.
We know about many disagreements because Christians wrote about them.
Irenaeus describes competing Gnostic groups.
Church Fathers argue against heretics.
Different theological movements leave traces.
This makes the complete disappearance of a supposedly authentic Islamic Christianity even harder to explain.
If an Apostolic community had been proclaiming:
Jesus escaped crucifixion
and:
Jesus was merely a prophet whose followers must reject His divinity,
we would expect some historical evidence of the conflict.
Instead the earliest Christian sources overwhelmingly centre upon the Crucified and Risen Christ.
Could Constantine Have Corrupted Christianity?
Another popular claim blames Emperor Constantine.
Constantine legalised Christianity in the early fourth century.
The Council of Nicaea met in AD 325.
But by then it was far too late to invent Christianity’s central doctrines.
We possess Christian writings from centuries before Constantine.
Ignatius of Antioch writes around AD 107.
Justin Martyr writes around AD 150.
Irenaeus writes around AD 180.
Tertullian writes around AD 200.
These writers already discuss:
Christ’s divinity.
Father, Son and Holy Spirit.
Baptism.
Eucharist.
Bishops.
Apostolic succession.
Christ’s Crucifixion and Resurrection.
Constantine was not even born when much of this was written.
Constantine Did Not Decide Which Books Went Into the Bible
Another widespread claim says:
“Constantine created the Bible at Nicaea.”
That is historically false.
The Council of Nicaea was principally concerned with the Arian controversy — especially the relationship between the Father and Son.
The council did not sit down and choose Matthew, Mark, Luke and John while suppressing supposedly Islamic Gospels.
Christians had been reading the four canonical Gospels for generations.
Around AD 180, Irenaeus explicitly argues for the fourfold Gospel:
Matthew.
Mark.
Luke.
John.
That is nearly 150 years before Nicaea.
What About Lost Gospels?
Yes, ancient Christianity produced other writings called “gospels.”
Examples include texts associated with:
Thomas.
Peter.
Judas.
Mary.
But the mere existence of another ancient text does not make it equally historical.
They must be dated and examined.
Many apocryphal Gospels are considerably later than the canonical traditions and reflect theological movements already developing within Christianity.
And none provides us with the missing first-century Islamic Gospel required by the corruption theory.
The Manuscripts Survive From Before Islam
The corruption theory faces another enormous obstacle.
By Muhammad’s lifetime, biblical manuscripts already existed that are still available to us today.
Codex Vaticanus comes from the fourth century.
Codex Sinaiticus comes from the fourth century.
There are still earlier New Testament papyri.
These predate Islam.
And they contain the same central Christianity that modern Bibles contain:
Jesus was crucified.
Jesus rose.
Jesus is the Son.
Jesus is Lord.
So the Bible cannot have been changed after Muhammad to create these doctrines.
The manuscripts prove they were already there.
The Church Fathers Create Another Textual Witness
Even if every ancient biblical manuscript had disappeared, we would still possess another enormous source of evidence:
Quotations from Scripture in early Christian writings.
The Church Fathers quoted the New Testament extensively.
Their writings allow us to see what biblical passages Christians were reading centuries before Islam.
To rewrite Christianity’s Bible later would therefore require rewriting:
Greek manuscripts.
Latin manuscripts.
Syriac manuscripts.
Coptic manuscripts.
and simultaneously rewriting or eliminating countless quotations embedded in Christian literature.
Historically, that simply is not what happened.
Textual Variants Are Not Evidence of Wholesale Corruption
Muslims sometimes correctly point out that biblical manuscripts contain textual variants.
Christians should never deny this.
Hand-copied manuscripts naturally developed differences.
Textual criticism exists precisely to compare those manuscripts.
Some variants involve:
Spelling.
Word order.
Repeated or omitted words.
Others involve larger passages.
Two famous examples include:
The longer ending of Mark.
The woman caught in adultery in John 7:53–8:11.
Modern Catholic Bibles openly acknowledge textual questions like these.
Nothing is being hidden.
But this actually demonstrates something important.
Because we possess many manuscripts, variants can be identified.
And none of these textual questions reconstructs an original New Testament teaching:
Jesus was never crucified.
or:
Jesus was merely an Islamic prophet.
The central Christian proclamation remains firmly embedded across the textual tradition.
What Would Successful Corruption Require?
Think about what the corruption theory actually requires.
Someone would need to change Christianity’s message across communities scattered throughout:
Jerusalem.
Syria.
Egypt.
Asia Minor.
Greece.
Rome.
North Africa.
And elsewhere.
These Christians spoke different languages.
They sometimes disagreed bitterly.
Some were separated by theological controversies.
Yet somehow all surviving streams would need to converge upon the same false central story:
Jesus was crucified.
Jesus rose.
Jesus is Lord.
And the original Islamic Gospel would need to disappear almost completely.
That is an extraordinary historical hypothesis.
And Yet the Qur’an Still Appeals to Earlier Scripture
Now return to the Qur’an.
It says of the Torah:
“In it was guidance and light.”
— Qur’an 5:44
It says of the Gospel:
“In it was guidance and light.”
— Qur’an 5:46
Then:
“Let the People of the Gospel judge by what Allah has revealed therein.”
— Qur’an 5:47
And:
“You have no ground to stand on unless you observe the Torah, the Gospel…”
— Qur’an 5:68
This creates the problem we have already identified.
If Christianity’s Scriptures had been corrupted centuries earlier:
Why does the Qur’an continue directing the People of the Book toward them?
The Islamic Dilemma Returns
We can now see the dilemma with even greater clarity.
Option One:
The Torah and Gospel existing in Muhammad’s time substantially preserved the earlier revelation.
Then they can be examined.
But the pre-Islamic biblical evidence contradicts Islam concerning:
The Crucifixion.
Resurrection.
Sonship.
Christ’s divine identity.
That is a problem for Islam.
Option Two:
The Scriptures had already been corrupted before Muhammad.
Then we ask:
When?
By whom?
Where is the original text?
Where are the original believers?
Why do pre-Islamic manuscripts contain Christianity as we know it?
Why does the Qur’an tell the People of the Book to judge by their revelation?
That is also a problem.
Hence:
The Islamic Dilemma.
A Third Muslim Response
A more sophisticated Muslim response might say:
“The Qur’an confirms only the truth that remains in the previous Scriptures. It acts as the final criterion over them.”
Qur’an 5:48 is often important here, describing the Qur’an in relation to previous Scripture.
Muslim interpreters may understand it as confirming and guarding or overseeing earlier revelation.
That deserves serious consideration.
But it does not remove the historical problem.
Because if the Qur’an corrects earlier Scripture, the Christian can still ask:
What evidence establishes the Qur’an’s authority to correct documents written centuries earlier?
We cannot assume the Qur’an is God’s final criterion in order to prove that the Qur’an is God’s final criterion.
That would again be circular reasoning.
Muhammad’s prophetic authority must first be established independently.
Christianity Has a Traceable History
Christianity does not disappear after Jesus and reappear centuries later.
We can follow it historically.
Jesus and the Apostles.
↓
Paul, Peter, James and John.
↓
Clement.
↓
Ignatius.
↓
Polycarp.
↓
Justin Martyr.
↓
Irenaeus.
↓
Tertullian.
↓
Origen.
↓
Cyprian.
↓
Nicaea.
There are controversies and developments throughout that history.
But there is no six-hundred-year black hole.
We can watch Christianity develop while retaining its central proclamation:
Jesus Christ, crucified and risen.
The Burden of Proof
If someone claims that this entire historical tradition represents a corruption, the burden cannot simply be placed upon Christians to disprove an unspecified event.
The person making the corruption claim should be able to tell us:
What the original Gospel said.
Where it existed.
When it was changed.
Who changed it.
How the alteration spread.
What manuscripts preserve the earlier version.
Which early Christians defended it.
Without that evidence, “the Gospel was corrupted” becomes an assertion used to explain away evidence rather than a conclusion established from evidence.
The Christian Position Is Historically Simpler
The surviving evidence gives us a much simpler historical picture.
Jesus was crucified.
His followers became convinced He had risen.
They proclaimed Him as Messiah and Lord.
Christian communities spread.
Their writings were copied.
Their worship developed around Christ.
Their bishops preserved Apostolic teaching.
Doctrinal controversies caused the Church to define its beliefs more precisely.
Centuries later, Islam appeared and offered a substantially different account of Jesus.
Historically, we do not need to hypothesise a vanished Islamic Christianity to explain the evidence.
The evidence already explains itself through the development of historic Christianity.
The Question Remains
If God allowed Jesus’ true message to disappear almost immediately, another difficult theological question follows.
Jesus was supposedly one of God’s greatest prophets.
According to Islam, God gave Him the Gospel.
Yet within decades, His followers supposedly:
Corrupted His identity.
Invented His divine Sonship.
Falsely proclaimed His Crucifixion.
Falsely proclaimed His Resurrection.
And then this false religion spread throughout much of the world for six centuries before God corrected it.
That raises a profound question:
Why would God allow the message of Jesus to fail so completely?
And it leads naturally to another area where Christianity and Islam differ dramatically — not merely about history, but about how God saves humanity:
Salvation in Christianity and Islam — Grace, the Cross and the Assurance of Forgiveness
Christianity and Islam do not merely disagree about who Jesus is.
They ultimately present very different answers to one of the greatest questions a human being can ask:
How can sinful man be reconciled to a holy God?
Both Christianity and Islam teach that human beings sin.
Both teach repentance.
Both teach judgment.
Both teach that God is merciful.
Both teach that our actions matter.
But Christianity makes a claim that stands at the very centre of the Gospel:
God Himself has acted to save us through Jesus Christ.
Christian salvation is not simply a set of instructions telling sinners how to become good enough for God.
It begins with something God has done for us.
The Human Problem Is Sin
Scripture says:
“All have sinned and fall short of the glory of God.”
— Romans 3:23
Sin is not merely breaking an arbitrary rule.
It damages our relationship with God.
Jesus describes sin as coming from the human heart:
“For from within, out of the heart of man, come evil thoughts…”
— Mark 7:21
Humanity’s deepest problem therefore cannot be solved simply by:
Trying harder.
Performing more religious acts.
Comparing ourselves with people who are worse.
We need reconciliation with God.
And Christianity says God Himself provides it.
“God So Loved the World”
Perhaps the most famous passage in the New Testament says:
“For God so loved the world that he gave his only Son…”
— John 3:16
Notice where salvation begins.
With God.
With God’s love.
With God’s action.
Paul says:
“God shows his love for us in that while we were yet sinners Christ died for us.”
— Romans 5:8
Christianity therefore does not begin:
Become righteous enough and perhaps God will love you.
It begins:
God loved us while we were sinners and acted to rescue us.
Why the Cross?
This is where the Islamic denial of the Crucifixion becomes much more than a disagreement about history.
The Cross stands at the centre of the Christian understanding of salvation.
John the Baptist sees Jesus and declares:
“Behold, the Lamb of God, who takes away the sin of the world!”
— John 1:29
Jesus Himself says:
“The Son of man came not to be served but to serve, and to give his life as a ransom for many.”
— Mark 10:45
At the Last Supper He says:
“This is my blood of the covenant, which is poured out for many for the forgiveness of sins.”
— Matthew 26:28
The Cross was therefore not an unfortunate accident that interrupted Jesus’ mission.
It was part of His mission.
Christ Bears Our Sins
Peter writes:
“He himself bore our sins in his body on the tree.”
— 1 Peter 2:24
Paul says:
“Christ died for our sins.”
— 1 Corinthians 15:3
And:
“In Christ God was reconciling the world to himself.”
— 2 Corinthians 5:19
Christianity therefore teaches something extraordinary.
God does not simply stand at a distance telling sinners:
“Fix yourselves.”
In Jesus Christ, God enters human history and confronts sin, suffering and death.
The Cross reveals both:
The seriousness of sin.
and
The depth of God’s love.
Did the Father Punish an Innocent Third Party?
The Cross is sometimes criticised as though Christianity teaches:
Humanity sinned.
God became angry.
God found an innocent stranger.
God punished him instead.
That badly misrepresents Christian doctrine.
Jesus is not an unwilling third party.
The Son shares the one divine nature with the Father.
Jesus says:
“I lay down my life… No one takes it from me, but I lay it down of my own accord.”
— John 10:17–18
The Cross is therefore an act of divine self-giving.
The Father gives the Son.
The Son freely offers Himself.
The Holy Spirit participates in the saving work of God.
The one God acts for our salvation.
The Sacrifice of Christ
For Catholics, the Cross must also be understood through the biblical idea of sacrifice.
The Old Testament prepares for Christ through:
Passover.
The Temple sacrifices.
The Day of Atonement.
Covenant sacrifice.
The suffering servant.
All find their fulfilment in Jesus.
Hebrews says:
“Christ appeared as a high priest of the good things that have come.”
— Hebrews 9:11
And:
“He entered once for all into the Holy Place… thus securing an eternal redemption.”
— Hebrews 9:12
Jesus is both:
Priest
and
Victim.
The Cross is the perfect sacrifice of the New Covenant.
What Does Islam Teach About Sin?
Islam also teaches that human beings sin and need God’s forgiveness.
But Islam does not teach the Christian doctrine of original sin in the same way.
Adam sins, but his personal guilt is not understood as inherited by every human being.
The Qur’an repeatedly teaches personal responsibility:
“No bearer of burdens will bear the burden of another.”
— Qur’an 6:164
Christians can agree with the fundamental principle that we are morally responsible for our own personal sins.
Catholic doctrine does not teach that newborn babies personally committed Adam’s sinful act.
Original sin refers to a fallen condition and deprivation of original holiness inherited by humanity, not personal blame for an action we did not perform.
That distinction matters.
Islam Emphasises Repentance and Mercy
Islam strongly emphasises God’s mercy.
The Qur’an repeatedly calls Allah:
The Most Merciful.
The Most Compassionate.
For example:
“Do not lose hope in Allah’s mercy, for Allah certainly forgives all sins.”
— Qur’an 39:53
Christians should acknowledge this rather than falsely claiming:
“Islam has no concept of mercy.”
It clearly does.
Muslims are taught to:
Believe.
Repent.
Pray.
Give charity.
Fast.
Obey God.
Perform righteous deeds.
And to hope in God’s mercy.
The disagreement is not whether Islam teaches divine mercy.
It does.
The deeper question is:
How are God’s justice and mercy finally reconciled?
Can God “Just Forgive”?
A Muslim may ask:
“Why does anyone have to die? If God is merciful, why doesn’t He simply forgive?”
That is a serious theological question.
Christianity answers that forgiveness is free to the sinner, but that does not mean evil is meaningless.
Consider human forgiveness.
If someone destroys something valuable belonging to you and you genuinely forgive the debt, the cost does not magically disappear.
Someone absorbs it.
Christianity sees the Cross as the ultimate expression of this principle.
God does not pretend sin does not matter.
Nor does He abandon the sinner.
God Himself bears the cost of reconciliation.
Justice and Mercy Meet at the Cross
Paul describes God as both:
“just and the justifier of him who has faith in Jesus.”
— Romans 3:26
That is central to Christianity.
God’s justice is real.
God’s mercy is real.
Neither is an illusion.
At the Cross:
Sin is taken seriously.
Mercy is freely offered.
Justice is fulfilled.
Love triumphs.
The Cross is therefore not an obstacle to God’s mercy.
For Christianity:
The Cross is the supreme revelation of God’s mercy.
Salvation Is Grace
Paul writes:
“For by grace you have been saved through faith… it is the gift of God.”
— Ephesians 2:8
Catholics affirm this completely.
Salvation cannot be purchased.
It cannot be earned independently of God.
Grace comes first.
But as we saw in our Catholic apologetics section, biblical faith is not a dead intellectual belief.
Paul speaks of:
“faith working through love.”
— Galatians 5:6
The Christian must cooperate with God’s grace.
Good works matter.
But they are possible because God first gives grace.
Islam and the Scales
The Qur’an uses the imagery of scales at judgment.
“The weighing on that Day will be just.”
— Qur’an 7:8
Those whose scales are heavy prosper, while those whose scales are light face loss.
Similar imagery appears elsewhere in the Qur’an.
It would be an oversimplification, however, to reduce Islam to:
Good deeds > bad deeds = Heaven.
Mainstream Islamic theology also strongly emphasises:
God’s mercy.
Repentance.
Faith.
Divine judgment.
And Islamic traditions themselves emphasise that entrance into Paradise ultimately depends upon God’s mercy.
So Christians should not caricature Islam as a purely mechanical points system.
But there remains a profound difference.
What Is the Foundation of Christian Confidence?
The Christian looks ultimately not toward the weight of his own achievements but toward Jesus Christ.
Paul says:
“There is therefore now no condemnation for those who are in Christ Jesus.”
— Romans 8:1
John writes:
“If we confess our sins, he is faithful and just, and will forgive our sins.”
— 1 John 1:9
And:
“We have an advocate with the Father, Jesus Christ the righteous.”
— 1 John 2:1
The Christian’s hope rests upon a Person:
Jesus Christ.
His death.
His Resurrection.
His promises.
His grace.
Does Catholicism Teach Absolute Assurance?
We need to be careful here.
Catholicism does not teach:
“Once you have accepted Jesus, nothing you ever subsequently do can endanger your salvation.”
Scripture repeatedly calls Christians to persevere.
Jesus says:
“He who endures to the end will be saved.”
— Matthew 24:13
Paul warns:
“Let any one who thinks that he stands take heed lest he fall.”
— 1 Corinthians 10:12
So Catholic confidence is not presumption.
We trust completely in God’s grace while recognising that human beings remain genuinely free to reject Him.
Can a Catholic Know He Is Forgiven?
Yes.
This is one of the beautiful aspects of Catholic sacramental life.
After His Resurrection, Jesus tells the Apostles:
“Receive the Holy Spirit. If you forgive the sins of any, they are forgiven.”
— John 20:22–23
In the Sacrament of Reconciliation, the repentant Christian does not merely wonder:
“Perhaps God has forgiven me.”
Christ has given His Church a ministry of reconciliation.
The priest pronounces absolution through the authority Christ entrusted to His Church.
The foundation remains Christ’s mercy, not the priest’s personal holiness.
Christianity Is Adoption
Christian salvation is even deeper than acquittal.
God does not merely say:
“Your record has been cleared. Go away.”
Paul says:
“You have received the spirit of sonship.”
— Romans 8:15
And:
“If children, then heirs, heirs of God and fellow heirs with Christ.”
— Romans 8:17
John writes:
“See what love the Father has given us, that we should be called children of God.”
— 1 John 3:1
Christian salvation is therefore:
Forgiveness.
Reconciliation.
Regeneration.
Adoption.
Communion with God.
Ultimately:
Participation in God’s own divine life.
“Our Father”
This explains why Jesus teaches Christians to pray:
“Our Father…”
— Matthew 6:9
Christianity’s relationship with God is profoundly filial.
Through the eternal Son, Christians become adopted sons and daughters.
We do not become divine Persons.
We do not become God by nature.
But through grace we are brought into genuine communion with Him.
Peter even describes Christians as becoming:
“partakers of the divine nature.”
— 2 Peter 1:4
This is an astonishing vision of salvation.
Jesus Does Not Merely Bring a Message
Here lies perhaps one of the greatest differences between Christianity and Islam.
In Islam, Muhammad’s essential role is to deliver God’s revelation.
The message is greater than the messenger.
Christianity is radically different.
Jesus does not merely say:
“Here is God’s message.”
He says:
“I am the way, and the truth, and the life.”
— John 14:6
Not:
“I merely show you the way.”
But:
“I am the way.”
Jesus Himself stands at the centre of salvation.
“Come to Me”
Jesus says:
“Come to me, all who labor and are heavy laden, and I will give you rest.”
— Matthew 11:28
Consider how extraordinary that is.
A prophet normally says:
Come to God.
Jesus says:
Come to Me.
He continues:
“Take my yoke upon you… and you will find rest for your souls.”
— Matthew 11:29
Christianity is not merely submission to a divine law.
It is union with Christ.
The Cross Changes Everything
This is why Islam’s denial of the Crucifixion is so consequential.
If Jesus was not crucified, then enormous portions of the earliest Christian message collapse.
But if Jesus was crucified — as the historical evidence strongly indicates — then the Qur’an has denied the very event through which Christianity understands God’s saving love.
And if Jesus then rose from the dead, the Cross becomes not defeat but victory.
Paul declares:
“Death is swallowed up in victory.”
— 1 Corinthians 15:54
Christianity’s answer to death is not:
Jesus escaped it.
It is:
Jesus entered death and conquered it.
Two Very Different Visions
The contrast can now be seen clearly.
Islam teaches the worship of one God, repentance, obedience, righteous deeds and reliance upon divine mercy.
Christianity also teaches one God, repentance, obedience and righteous living.
But Christianity makes the additional, extraordinary claim:
God has entered His creation to rescue us.
The eternal Son became man.
He took upon Himself our humanity.
He suffered.
He died.
He rose.
He pours out the Holy Spirit.
And through Him we are brought into the life of the Trinity.
That is much more than receiving information from a prophet.
It is redemption.
The Christian Hope
The Christian therefore does not stand before God saying:
“Look how good I have been. You owe me Heaven.”
He says:
“Jesus Christ, Son of God, have mercy on me, a sinner.”
Our hope rests upon Christ.
Our good works are the fruit of His grace.
Our repentance responds to His grace.
Our sacraments communicate His grace.
Our perseverance is sustained by His grace.
And when we fall, He calls us back to Himself.
Paul expresses the heart of the Gospel:
“The Son of God… loved me and gave himself for me.”
— Galatians 2:20
That is Christian salvation.
Not merely:
God sent us instructions.
But:
God came to save us.
And once that difference is understood, we can confront the argument at the centre of this entire section directly and in full:
The Islamic Dilemma — Can the Qur’an Affirm the Gospel and Contradict It?
We have now reached one of the most important arguments in Christian-Muslim apologetics.
It is often called:
The Islamic Dilemma
The argument does not begin by assuming Christianity is true.
Instead, it begins with statements found within the Qur’an itself.
The Qur’an teaches that God revealed earlier Scriptures.
It speaks positively about:
The Torah.
The Psalms.
The Gospel.
It describes the Torah and Gospel as containing guidance and light.
It tells the People of the Gospel to judge according to what God revealed within it.
Yet the biblical Scriptures demonstrably existing before Muhammad teach doctrines that directly contradict Islam.
That creates a dilemma.
Let’s build the argument carefully.
Step 1 — The Qur’an Affirms Earlier Revelation
Islam does not claim Muhammad was the first person to receive revelation.
The Qur’an says:
“Indeed, We sent down the Torah, in which was guidance and light.”
— Qur’an 5:44
Then:
“We gave him the Gospel, in which was guidance and light, confirming that which preceded it of the Torah.”
— Qur’an 5:46
So according to the Qur’an itself:
God revealed the Torah.
God revealed the Gospel.
They contained guidance.
They contained light.
This gives us our starting point.
Step 2 — The Qur’an Says the Gospel Confirms Earlier Revelation
Notice another recurring concept.
The Qur’an describes revelation as confirming what came before it.
Jesus is described as:
“confirming that which came before me of the Torah.”
— Qur’an 61:6
And the Qur’an describes itself as:
“confirming what was before it.”
— Qur’an 3:3
There is therefore supposed to be continuity in divine revelation.
God does not reveal truth and then reveal its contradiction.
If:
A = true
God cannot later reveal:
A = false
in the same sense.
God cannot lie.
Step 3 — Christians Are Told to Judge by the Gospel
Now we reach one of the crucial passages:
“Let the People of the Gospel judge by what Allah has revealed therein.”
— Qur’an 5:47
This command occurs in the Qur’an itself.
The question is straightforward:
What Gospel were Christians supposed to use?
Muhammad lived in the seventh century.
By that point Christians had possessed their Gospel texts for centuries.
Matthew, Mark, Luke and John had been:
Copied.
Translated.
Quoted.
Preached.
Used in Christian worship.
So when the Qur’an addresses the People of the Gospel, there was an identifiable Christian scriptural tradition already in existence.
Step 4 — The People of the Book Are Told to Uphold Their Scriptures
The Qur’an says:
“O People of the Book! You have no ground to stand on unless you observe the Torah, the Gospel, and what has been revealed to you from your Lord.”
— Qur’an 5:68
Again:
Torah.
Gospel.
And the People of the Book are expected to uphold them.
This becomes difficult to reconcile with the claim that these Scriptures had already become so corrupted that Christians could no longer reliably know what God revealed.
How does someone uphold a revelation that no longer exists in recoverable form?
Step 5 — Muhammad Is Told to Refer to Earlier Scripture Readers
Another striking passage says:
“If you are in doubt about what We have revealed to you, ask those who have been reading the Scripture before you.”
— Qur’an 10:94
As we noted earlier, Muslims generally do not interpret this as meaning Muhammad actually doubted his revelation.
The sentence is conditional.
That should be represented accurately.
But our question is different:
Why are readers of previous Scripture presented as meaningful witnesses at all?
If their Scriptures had already been completely corrupted, appealing to them would seem very strange.
Step 6 — The Bible Existing Before Muhammad Contradicts Islam
Now comes the historical evidence.
We do not have to guess what Christians believed before Muhammad.
We possess manuscripts older than Islam.
For example:
Codex Vaticanus — fourth century.
Codex Sinaiticus — fourth century.
And there are earlier New Testament papyri.
These texts existed centuries before Muhammad.
And what do they contain?
The same central Christian claims found in modern Bibles.
Jesus is the Son of God.
Jesus was crucified.
Jesus died.
Jesus rose from the dead.
Jesus receives worship.
Jesus possesses divine identity.
Father, Son and Holy Spirit appear throughout Christian revelation.
So these doctrines cannot be dismissed as alterations Christians introduced after the rise of Islam.
They were already present.
Step 7 — The Church Fathers Push the Evidence Earlier
Even without biblical manuscripts, early Christian writers prove what Christians believed.
Clement — c. AD 96.
Ignatius — c. AD 107.
Justin Martyr — c. AD 150.
Irenaeus — c. AD 180.
These Christians lived hundreds of years before Muhammad.
Their writings already reveal Christianity centred upon:
Christ’s death.
Resurrection.
Divine identity.
Eucharistic worship.
Baptism.
Father, Son and Holy Spirit.
So historically we can reconstruct Christian belief long before Islam appeared.
Now the Dilemma
We can therefore formulate the argument.
Option One — The Earlier Scriptures Were Reliable
Suppose the Torah and Gospel available to Jews and Christians in Muhammad’s time substantially preserved God’s revelation.
Then we should read them.
But when we do, they contradict Islam.
The New Testament says:
“They crucified him.”
— Mark 15:24
The Qur’an says:
“They did not kill him, nor did they crucify him.”
— Qur’an 4:157
Both cannot be historically true.
The New Testament says:
“The Word was God.”
— John 1:1
And:
“The Word became flesh.”
— John 1:14
Thomas says to Jesus:
“My Lord and my God!”
— John 20:28
Islam denies that Jesus is God.
Again:
Both cannot be true.
Therefore, if the earlier Scripture remains reliable:
Islam contradicts revelation it claims to confirm.
That is the first horn of the dilemma.
Option Two — The Earlier Scriptures Were Corrupted
The Muslim may answer:
“The Bible Christians possess is corrupted.”
Now we encounter the second horn.
If the Torah and Gospel had already become textually unreliable before Muhammad, why does the Qur’an:
Call the Torah guidance and light?
Call the Gospel guidance and light?
Tell Christians to judge according to the Gospel?
Tell the People of the Book to uphold the Torah and Gospel?
Appeal to readers of earlier Scripture?
And then there is the historical problem:
When did the corruption occur?
Before Muhammad or After Muhammad?
This question is devastatingly important.
There are only broad possibilities.
The Bible was corrupted before Muhammad.
or:
The Bible was corrupted after Muhammad.
Consider each.
If the Bible Was Corrupted Before Muhammad
Then the Qur’an appears to direct Jews and Christians toward Scriptures that were already corrupted.
When Qur’an 5:47 says:
“Let the People of the Gospel judge by what Allah has revealed therein,”
what exactly were seventh-century Christians supposed to open and read?
Their Christian manuscripts already contained:
The Crucifixion.
Resurrection.
Divine Sonship.
Christ’s divine identity.
We know this because manuscripts predating Muhammad survive today.
So if those books were already corrupted, the Qur’an’s appeal to them requires explanation.
If the Bible Was Corrupted After Muhammad
This possibility is historically impossible as an explanation for Christianity’s central doctrines.
Why?
Because we possess biblical manuscripts written before Muhammad was born.
They already contain those doctrines.
You cannot alter a fourth-century manuscript in the seventh or eighth century and somehow make the physical manuscript travel backward through time.
And the problem extends beyond manuscripts.
Early Christian writers quote and discuss the same teachings centuries before Islam.
Therefore:
Christianity as we know it unquestionably predates Muhammad.
So When Was the Original Gospel Lost?
The Muslim corruption argument therefore requires a missing historical event.
Somewhere between Jesus and Muhammad, supposedly:
The true Gospel disappeared.
Christianity adopted a false Gospel.
Jesus became divine.
The Crucifixion became accepted despite never happening.
The Resurrection became central.
The Trinity developed.
Yet the evidence pushes all these central beliefs extremely early.
So the corruption must be pushed closer and closer toward the Apostolic age itself.
Eventually we are left asking:
Did Jesus’ message fail almost immediately?
What About Tahrif?
A Muslim may respond:
“The Qur’an says Jews and Christians distorted Scripture.”
As we previously examined, the concept usually discussed is tahrif.
The Qur’an certainly accuses some People of the Book of:
Distorting words.
Concealing truth.
Twisting Scripture with their tongues.
Writing things and falsely attributing them to God.
Those are serious accusations.
But they do not automatically establish:
Every biblical manuscript throughout the Christian world had been textually rewritten.
For example, Qur’an 3:78 speaks of people who:
“distort the Scripture with their tongues”
so that others think something comes from Scripture when:
“it is not from the Scripture.”
That actually distinguishes:
Scripture itself
from
A false representation of Scripture.
Misinterpretation is not the same as universal textual replacement.
What About Qur’an 5:48?
A more sophisticated Muslim response appeals to Qur’an 5:48.
The Qur’an describes itself as confirming previous Scripture and uses the Arabic term muhaymin in relation to it, often translated along the lines of:
Guardian.
Overseer.
Criterion.
A Muslim may therefore argue:
“The Qur’an confirms what remains true in the Bible and corrects what became corrupted.”
This is a stronger response than simply saying:
“The Bible changed.”
But there is still a problem.
How do we establish that the Qur’an has authority to correct earlier Scripture?
We cannot reason:
The Qur’an is God’s Word because Muhammad said so.
and then:
Muhammad is God’s prophet because the Qur’an says so.
That is circular.
The Christian can ask:
What independent reason should make us accept a seventh-century text over first-century testimony?
Especially when the later text contradicts historically established events such as the Crucifixion.
What About the Original Injil?
Another response says:
“The Qur’an never confirms your four Gospels. God gave Jesus one Injil, and that original Injil was lost.”
Again, we can ask:
Where is the evidence?
Where is this first-century Islamic Injil?
What did it say?
Who read it?
Who quoted it?
Where are its manuscripts?
Which early Christian community preserved it?
Why does no surviving Apostolic source tell us:
Jesus escaped crucifixion?
And if this divine book disappeared:
Why does the Qur’an centuries later tell the People of the Gospel to judge by what God revealed therein?
Simply proposing a lost book does not establish that the book existed in the form required by the argument.
The Manuscript Evidence Is Particularly Difficult
This is where the Islamic Dilemma becomes more than a theological word game.
We can physically examine Christianity before Islam.
We have manuscripts.
We have translations.
We have quotations.
We have commentaries.
We have sermons.
We have liturgies.
We have theological disputes.
Christianity was geographically widespread.
There was no single medieval authority capable of gathering every Christian manuscript from:
Europe.
North Africa.
Egypt.
Syria.
Palestine.
Persia.
and rewriting them all.
And even if someone had attempted it, the older manuscripts would expose the alteration.
That is precisely why ancient manuscripts matter today.
There Is No “Islamic New Testament” in the Manuscript Tradition
This point is fundamental.
When textual critics compare ancient New Testament manuscripts, they find variants.
But they do not uncover an earlier New Testament saying:
Jesus was never crucified.
They do not reconstruct an original John saying:
The Word was merely a human prophet.
They do not find an early Matthew saying:
Muhammad will arrive six centuries later and correct Christianity.
The manuscript evidence simply does not reveal a lost Islamic Christianity beneath the Christian text.
Could God Allow His Word to Be Corrupted?
There is also a theological problem.
The Qur’an says:
“There is no changer of His words.”
— Qur’an 6:115
And:
“None can alter the words of Allah.”
— Qur’an 18:27
As noted earlier, Muslim interpreters can legitimately argue that these verses refer particularly to God’s decrees, promises or revelation in context rather than functioning as a technical doctrine of manuscript preservation.
So Christians should not pretend these two verses alone settle the debate.
But they sharpen the theological question:
If God gave humanity the Torah and Gospel as guidance and light, did He then allow those revelations to disappear so completely that His followers could no longer know what they originally taught?
And if so:
Why does the Qur’an continue appealing to them?
The Dilemma in Simple Form
We can now reduce the argument to its essentials.
The Qur’an affirms earlier divine revelation.
The Torah and Gospel came from God.
↓
The Qur’an speaks positively about those revelations.
They contain guidance and light.
↓
The Qur’an addresses Jews and Christians in relation to those Scriptures.
The People of the Gospel are told to judge by what God revealed therein.
↓
We possess biblical evidence from before Islam.
Those texts teach Christianity.
↓
Christianity contradicts Islam on fundamental claims.
Especially:
Jesus’ Crucifixion.
Resurrection.
Divine Sonship.
Divine identity.
Therefore:
If the earlier Scriptures are reliable, Islam contradicts them.
But:
If the earlier Scriptures were already corrupted, the Qur’an’s appeals to them become extremely difficult to explain.
That is the Islamic Dilemma.
The Dilemma Does Not Automatically Prove Catholicism
This should be stated clearly.
Showing a problem within Islam does not automatically prove:
Catholicism.
A person could reject Islam and Christianity.
Or accept another worldview.
The positive case for Christianity still depends upon evidence concerning:
Jesus.
His Crucifixion.
His Resurrection.
His claims.
The Apostolic testimony.
And the case for Catholicism then proceeds through:
The Church Christ founded.
Peter.
Apostolic succession.
The Eucharist.
Scripture and Tradition.
which we have examined elsewhere on this site.
The Islamic Dilemma has a narrower purpose:
It challenges Islam’s claim to confirm earlier revelation while contradicting the historically recoverable content of that revelation.
Nor Should Christians Misrepresent Muslims
A Muslim may have sophisticated answers to this argument.
They may distinguish:
Original revelation from later manuscripts.
Confirmation from complete endorsement.
Textual corruption from interpretive corruption.
The Qur’an’s authority from the Bible’s authority.
Those arguments should be heard and examined fairly.
The Christian case becomes stronger, not weaker, when we present the best opposing argument rather than the weakest version.
But after those qualifications, the central historical question remains.
Which Testimony Is Earlier?
The New Testament comes from the first-century Christian world.
Muhammad appears in the seventh century.
The earlier sources tell us:
Jesus was crucified.
The later Qur’an says:
Jesus was not crucified.
The earlier sources present Jesus as:
Son of God and Lord.
The later Qur’an rejects those claims.
Therefore the Christian can reasonably ask:
Why should the later account replace the earlier evidence?
The answer cannot simply be:
“Because the Qur’an is God’s revelation.”
That is the very claim under investigation.
The Christian Has a Decision to Make
If Jesus truly died and rose from the dead, then His Apostles were witnesses to something unique in human history.
If their testimony concerning Jesus was faithfully transmitted, then a later prophet cannot overturn it.
Paul’s warning becomes remarkably relevant:
“Even if we, or an angel from heaven, should preach to you a gospel contrary to that which we preached to you, let him be accursed.”
— Galatians 1:8
The Apostolic Gospel came first.
And its centre was:
Jesus Christ crucified and risen.
Islam asks Christians to surrender that Gospel for a different account appearing centuries later.
Before doing so, every Christian — and every Muslim sincerely seeking the truth — has the right to ask:
What is the evidence?
And that brings us toward the final question of this section:
Christianity or Islam — Which Account of Jesus Best Fits the Historical Evidence?
After everything we have examined, the disagreement between Christianity and Islam ultimately comes down to Jesus Christ.
Both religions speak about Him.
Both honour Him.
Both call Him the Messiah.
Both connect Him uniquely with Mary.
But they give radically different accounts of who He is and what happened to Him.
Christianity says:
Jesus is the eternal Son of God made flesh.
He was crucified under Pontius Pilate.
He truly died.
He was buried.
He rose bodily from the dead.
His Apostles witnessed Him alive.
Through His death and Resurrection, God offers salvation to the world.
Islam says:
Jesus was a great prophet and Messiah.
He was not God.
He was not the divine Son of God.
He was not crucified.
Christian belief about Him became seriously mistaken.
These accounts cannot simply be combined.
One of them is wrong.
So rather than beginning by assuming either the Bible or Qur’an is divinely inspired, we can ask a historical question:
Which account is closest to the evidence?
Start With the Dates
Jesus lived in the first century.
The New Testament writings come from the first century.
Paul’s earliest letters were written approximately twenty years after the Crucifixion.
And Paul preserves Christian traditions that are earlier still.
The four Gospels were written within the first-century Christian world.
Muhammad’s prophetic career began around:
AD 610.
That is almost six centuries after Jesus.
This does not automatically make Islam false.
A later source could theoretically contain correct information that an earlier source gets wrong.
But when a later source contradicts multiple much earlier sources, we need a good reason to prefer it.
What Do the Earliest Sources Say?
The earliest Christian evidence is remarkably clear about one thing:
Jesus was crucified.
Paul writes:
“We preach Christ crucified.”
— 1 Corinthians 1:23
And preserves the earlier tradition:
“Christ died for our sins… he was buried… he was raised on the third day.”
— 1 Corinthians 15:3–4
Mark says:
“And they crucified him.”
— Mark 15:24
Matthew says:
“And when they had crucified him…”
— Matthew 27:35
Luke:
“There they crucified him.”
— Luke 23:33
John:
“There they crucified him.”
— John 19:18
On this point, the first-century Christian sources agree.
The Qur’an Gives a Different Account
Approximately six centuries later, the Qur’an says:
“They did not kill him, nor did they crucify him, but it was made to appear to them.”
— Qur’an 4:157
Historically, we therefore have:
Earlier evidence: Jesus was crucified.
Much later claim: Jesus was not crucified.
If we temporarily set aside claims of divine inspiration, which conclusion would an historian normally accept?
The earlier, multiply attested account has the obvious advantage.
And this is why Jesus’ Crucifixion is widely accepted even among historians who are not Christians.
Christianity Does Not Need the Qur’an to Prove Its History
This is an important difference.
Christians do not argue:
“Jesus was crucified because a Christian book written six hundred years later says He was.”
Our sources come from the world of early Christianity itself.
Paul personally knew:
Peter.
James.
and other members of the Apostolic Church.
He was writing while the Christian movement was still young.
The historical distance between Paul’s testimony and Jesus is dramatically smaller than the distance between Jesus and Muhammad.
Non-Christian Evidence Matters Too
The Crucifixion is not attested only by Christians.
The Roman historian Tacitus, writing in the early second century, reports that Christus suffered the extreme penalty during the reign of Tiberius under Pontius Pilate.
Tacitus was hostile toward Christianity.
He had no reason to invent evidence supporting Christian preaching.
This provides independent confirmation of the basic historical framework:
Jesus existed.
He was executed.
Pontius Pilate was involved.
His followers continued afterward.
Again, this evidence predates Islam by centuries.
What About the Resurrection?
History can establish the Crucifixion with extremely high confidence.
The Resurrection involves a further question.
The historical evidence shows that extremely early Christians genuinely proclaimed:
Jesus had risen from the dead.
Paul records appearances to:
Peter.
The Twelve.
More than five hundred.
James.
The Apostles.
Paul himself.
— 1 Corinthians 15:5–8
Whatever explanation someone chooses, the Resurrection belief itself was not a medieval invention.
It appears at Christianity’s beginning.
Something Happened to the Disciples
Before the Crucifixion, the Gospels portray Jesus’ disciples as frightened and confused.
Peter denies Him.
The disciples scatter.
Their Messiah has apparently been defeated.
Yet shortly afterward they proclaim:
Jesus is alive.
And they proclaim this publicly.
The Christian movement does not die with Jesus.
It explodes outward.
The Apostles’ explanation is simple:
We saw Him alive.
Paul Requires an Explanation
Then there is Paul.
Paul was not originally a disciple mourning Jesus.
He persecuted Christians.
He writes:
“I persecuted the church of God violently and tried to destroy it.”
— Galatians 1:13
Yet this same man becomes one of Christianity’s greatest missionaries.
Why?
Paul says:
The risen Jesus appeared to him.
A historical explanation of early Christianity has to account for Paul’s transformation.
Simply saying:
“Christianity became corrupted”
does not explain it.
James Requires an Explanation
James, the brother of Jesus, is another interesting figure.
John tells us that during Jesus’ ministry:
“even his brothers did not believe in him.”
— John 7:5
Yet James later becomes one of the pillars of the Jerusalem Church.
— Galatians 2:9
And Paul’s early Resurrection tradition specifically says:
“Then he appeared to James.”
— 1 Corinthians 15:7
Again, something changed.
The earliest Christians believed they knew what it was.
Jesus had risen.
What Did the Earliest Christians Believe About Jesus?
Islam sometimes presents Christ’s divinity as a later corruption.
But again, the historical evidence pushes an exalted understanding of Jesus extremely early.
Paul writes:
“at the name of Jesus every knee should bow.”
— Philippians 2:10
This echoes Isaiah 45, where every knee bows before the LORD.
John writes:
“The Word was God.”
— John 1:1
Thomas addresses Jesus:
“My Lord and my God!”
— John 20:28
Jesus receives worship.
He forgives sins.
He claims authority over the Sabbath.
He speaks of His existence before Abraham.
He claims the heavenly authority of Daniel’s Son of Man.
Whatever someone ultimately concludes about Jesus, the evidence does not show a simple human prophet who was transformed into God centuries later at Nicaea.
Nicaea Is Far Too Late to Explain It
The Council of Nicaea took place in:
AD 325.
But we can move backward from Nicaea.
Ignatius of Antioch, around AD 107, refers to Jesus Christ in explicitly divine terms.
We can move earlier still.
Paul’s letters come from the AD 50s.
We can move earlier still.
Paul preserves Christian traditions he had already received.
So the historical trail leads not toward Constantine but toward:
The Apostolic generation.
The Islamic Account Has a Historical Gap
Islam asks us to believe that Jesus originally taught the truth later restored by Muhammad.
But between Jesus and Muhammad stand approximately six centuries.
Where during those centuries do we find the original Islamic understanding of Jesus?
Where are the first-century disciples proclaiming:
Jesus was not crucified?
Where are the Apostles teaching:
Jesus is merely a human prophet?
Where is the original Injil containing the later Islamic account?
Where is the historical community preserving it?
This is one of the greatest problems for the Islamic reconstruction of Christian origins.
Saying “The Bible Was Corrupted” Does Not Solve It
A corruption theory requires evidence.
We need to know:
When the corruption happened.
Who performed it.
What was changed.
What the original text said.
Which manuscripts preserve the earlier version.
Which early Christians resisted the corruption.
But our manuscripts already predate Islam.
Our early Christian writers predate Islam.
Our quotations predate Islam.
And all of them already reveal recognisably Christian belief.
The corruption hypothesis therefore does not naturally emerge from the historical evidence.
It must be imposed upon the evidence to preserve the later Islamic account.
And Then the Qur’an Creates Its Own Difficulty
The problem becomes greater because the Qur’an itself speaks positively about earlier revelation.
The Torah contains:
“guidance and light.”
— Qur’an 5:44
The Gospel contains:
“guidance and light.”
— Qur’an 5:46
Christians are told:
“Let the People of the Gospel judge by what Allah has revealed therein.”
— Qur’an 5:47
And the People of the Book are told to uphold:
“the Torah, the Gospel…”
— Qur’an 5:68
This produces the Islamic Dilemma we have examined.
If the earlier Scriptures were reliable, they contradict Islam.
If they were already hopelessly corrupted, the Qur’an’s appeals to them become difficult to explain.
The Question of Muhammad Comes After Jesus
This changes how a Christian should approach Islam.
We should not begin by asking:
“What does Muhammad tell me about Jesus?”
We already possess sources concerning Jesus that are centuries earlier than Muhammad.
The logical order is:
First examine Jesus.
Who was He?
Was He crucified?
Did His followers really proclaim His Resurrection?
What did His Apostles believe about Him?
Only then should we ask:
Does Muhammad’s later account agree with the evidence?
If it contradicts the earlier evidence, Muhammad’s claim requires extraordinarily strong justification.
An Angel Does Not Automatically Settle the Question
According to Islamic tradition, Muhammad received revelation through the angel Gabriel.
But Christianity already contained a warning concerning later revelation.
Paul writes:
“Even if we, or an angel from heaven, should preach to you a gospel contrary to that which we preached to you, let him be accursed.”
— Galatians 1:8
For the Christian, therefore, the claim:
“An angel revealed this”
cannot by itself overturn the Apostolic Gospel.
The message must be tested.
And the Apostolic Gospel was:
Christ died.
Christ was buried.
Christ rose.
That Gospel existed centuries before Islam.
This Is Not About Attacking Muslims
None of this requires hostility toward Muslims.
A Muslim neighbour can be:
Sincere.
Devout.
Generous.
Morally serious.
Deeply committed to God.
Those qualities should be respected.
The question is not:
“Are Muslims bad people?”
The question is:
Are Islam’s claims about Jesus true?
Truth is not determined by how pleasant or unpleasant the believer happens to be.
Christians and Muslims can respect one another while still recognising that our claims about Jesus are fundamentally incompatible.
Nor Should Christians Fear Difficult Questions
Christianity should be subjected to the same examination.
Ask:
Did Jesus really exist?
Was He really crucified?
Are the New Testament documents early?
Were they transmitted reliably?
Did the Apostles genuinely believe He rose?
Was His divinity invented later?
Did Constantine create Christianity?
Were the Gospels corrupted?
If Christianity cannot withstand historical investigation, Christians should want to know.
Truth has nothing to fear from honest examination.
But when these questions are investigated, the historical evidence repeatedly takes us back toward the earliest Christian proclamation:
Jesus Christ was crucified and His followers proclaimed that He had risen.
The Two Accounts Side by Side
The difference can now be stated simply.
Christianity
Jesus’ Crucifixion is attested in first-century sources.
His Resurrection is proclaimed from Christianity’s earliest period.
His Apostles preach Him as Lord.
His divine identity appears within the earliest Christian evidence.
The Christian documentary trail begins within the Apostolic age.
Islam
The Qur’an appears in the seventh century.
It denies the Crucifixion.
It denies Jesus’ divine Sonship.
It rejects central beliefs already present throughout pre-Islamic Christianity.
And it provides a substantially different account of Jesus centuries after the events.
Historically, those facts matter.
Which Account Requires Fewer Assumptions?
To accept the basic Christian historical account, we need to believe that:
Jesus’ earliest followers preserved the central events surrounding His death.
Jesus was crucified as our earliest sources report.
His disciples genuinely believed they encountered Him alive afterward.
That fits the surviving evidence.
To reconstruct Jesus according to the later Islamic account, however, we must additionally suppose that:
Jesus was never crucified despite the early testimony.
His followers became mistaken almost immediately.
The true Gospel disappeared.
The false Crucifixion story became universal.
An exalted understanding of Jesus appeared extremely early despite not originating with Him.
The true community preserving Jesus’ Islamic teaching left virtually no identifiable first-century documentary trail.
God finally corrected the situation through Muhammad approximately six centuries later.
That requires considerably more historical assumptions.
So Which Jesus Should We Follow?
Ultimately, Christianity asks us to follow the Jesus witnessed by those closest to the events.
The Jesus who:
Walked through Galilee.
Forgave sins.
Healed the sick.
Called Himself the Son of Man.
Was condemned under Pontius Pilate.
Was crucified.
Was buried.
Was proclaimed risen.
Was worshipped by His earliest followers.
Changed Peter.
Changed James.
Changed Paul.
And changed the course of history.
The Christian does not need to wait six centuries to discover who Jesus really was.
We already have the testimony of the Apostolic Church.
“Who Do You Say That I Am?”
At Caesarea Philippi, Jesus asks His disciples:
“Who do you say that I am?”
— Matthew 16:15
That question remains.
Islam answers:
A great prophet.
Christianity answers with Peter:
“You are the Christ, the Son of the living God.”
— Matthew 16:16
And with Thomas before the risen Jesus:
“My Lord and my God!”
— John 20:28
Everything ultimately depends upon which answer is true.
Because if Jesus is merely a prophet, Christianity has profoundly misunderstood Him.
But if the Apostolic testimony is true — if Jesus was crucified, rose from the dead and truly is the divine Son — then no prophet appearing centuries later has authority to reduce Him to something less.
The historical evidence brings us back to the man at the centre of it all:
Jesus Christ.
And Christianity makes its claim without ambiguity:
