Introduction
Islam presents a significant theological challenge to Christianity. Over the past decades, Islam has pursued an aggressive expansion program globally—across Europe, South America, Australia, the United States, and Canada. The Philippines has witnessed substantial Muslim community growth in towns and cities throughout Luzon and beyond. Muslim scholars and bloggers actively engage in digital media and social advocacy.
As Christians, we must understand Islam’s core doctrines to respond faithfully to this theological challenge. Islam’s foundational claims directly contradict Christian truth. This article examines the Islamic claim that the Bible has been corrupted—a doctrine critical to Islam’s legitimacy and authority.
Major Islamic Doctrines
Islamic teaching embraces several doctrines that fundamentally oppose Christian faith:
The Bible has been corrupted and is therefore not a valid authority in religion.
Allah is one person alone; there is no Trinity.
Muhammad is the greatest and final prophet.
Jesus Christ was merely a man, not God. Islam denies His crucifixion, claiming that Allah substituted another person who was crucified instead, and that Jesus was raised bodily to heaven without experiencing death or resurrection.
Islam teaches that Jesus will return, live forty years on earth, kill the antichrist, destroy all crosses, slaughter all pigs, then die, followed by the end of the world.
All people enter Hell initially. Only those approved or interceded for by Muhammad from his community can transfer to Paradise.
Focus of This Article
This article focuses on the first major claim: that the Bible has been corrupted and therefore is not a valid authority in religion. We will examine this claim directly from Islamic sources—the Qur’an itself—and demonstrate the internal contradictions within Islam’s position on the validity of Scripture.
Islamic Declaration on Scripture Corruption
The Qur’an makes the following declaration:
Surah 4:82
Do they not consider the Qur’an carefully? Had it been from other than Allah, they would surely have found therein many a contradiction.
Section I: The Qur’an’s Confirmation of Previous Scriptures
The Qur’an repeatedly uses the word confirming regarding previous scriptures. This is the critical theological point: to confirm means to verify as authentic and valid. The following Qur’anic passages demonstrate this claim:
Surah 2:91
When it is said to them, Believe in what Allah has revealed, they reply, We only believe in what was sent down to us, and they deny what came afterwards, though it is the truth confirming their own Scriptures! Ask them, O Prophet, Why then did you kill Allah’s prophets before, if you are truly believers?
Surah 3:3
He has revealed to you, O Prophet, the Book in truth, confirming what came before it, as He revealed the Torah and the Gospel.
Surah 5:46
Then in the footsteps of the prophets, We sent Jesus, son of Mary, confirming the Torah revealed before him. And We gave him the Gospel containing guidance and light and confirming what was revealed in the Torah—a guide and a lesson to the God-fearing.
Editorial Note: The word confirming in these passages is decisive. Confirmation affirms the truth and completeness of what was confirmed. When Muhammad received the Qur’an (A.D. 610–632), he was confirming the Torah and Gospel as they existed in his time. This directly contradicts later Islamic claims that these texts were corrupted.
Surah 5:44–47
Indeed, We revealed the Torah, containing guidance and light, by which the prophets, who submitted themselves to Allah, made judgments for the Jews. So too did the rabbis and scholars judge according to Allah’s Book, with which they were entrusted and of which they were made keepers. So do not fear the people; fear Me! Nor trade My revelations for a fleeting gain. And those who do not judge by what Allah has revealed are truly the disbelievers. Then in the footsteps of the prophets, We sent Jesus, son of Mary, confirming the Torah revealed before him. And We gave him the Gospel containing guidance and light and confirming what was revealed in the Torah—a guide and a lesson to the God-fearing. So let the people of the Gospel judge by what Allah has revealed in it. And those who do not judge by what Allah has revealed are truly the rebellious.
Surah 5:48
We have revealed to you, O Prophet, this Book with the truth, as a confirmation of previous Scriptures and a supreme authority on them. So judge between them by what Allah has revealed, and do not follow their desires over the truth that has come to you. To each of you We have ordained a code of law and a way of life. If Allah had willed, He would have made you one community, but His Will is to test you with what He has given each of you. So compete with one another in doing good. To Allah you will all return, then He will inform you of the truth regarding your differences.
Editorial Note: The phrase confirmation of previous Scriptures and a supreme authority on them is critical. This verse explicitly states that the Qur’an confirms (validates) the previous scriptures—the Torah and Gospel—as they existed at that time.
Section II: Islamic Claims of Scripture Corruption
Despite confirming the Torah and Gospel, Islamic teaching also claims these scriptures were corrupted by Jews and Christians. The Qur’an presents these conflicting claims:
Surah 5:13–15
But for breaking their covenant We condemned them and hardened their hearts. They distorted the words of the Scripture and neglected a portion of what they had been commanded to uphold. You, O Prophet, will always find deceit on their part, except for a few. But pardon them and bear with them. Indeed, Allah loves the good-doers. And when there came to them a Messenger from Allah, confirming what was with them, a party of those who were given the Scripture threw the Scripture of Allah behind their backs, as if they did not know it.
Editorial Note: This passage claims that some Jews and Christians distorted the words of the Scripture and neglected a portion. However, it specifically refers to oral neglect, not the written text. This is a crucial distinction.
The Internal Contradiction: Qur’anic Textual History
If the Bible was corrupted by human hands, was the Qur’an similarly protected? Consider these historical facts:
Caliph Uthman (ruled A.D. 644–656) ordered all existing Qur’an copies burned and had the Qur’an recompiled and standardized according to his specifications.
Today there exist at least two major Qur’anic text traditions: the Hafs version and the Warsh version, with approximately 5,000 documented variants between them.
These versions differ even in the number of verses (ayat) in individual chapters. For example, Chapter 16 contains 99 verses in the Warsh version but 128 verses in the Hafs version.
A hadith records that a verse on the suckling of adults ten times was lost when a sheep ate the manuscript on the day of Muhammad’s death. This verse appears in neither the Hafs nor the Warsh version.
If Islam claims the Bible was corrupted by human hands, yet the Qur’an itself experienced textual standardization under Caliph Uthman and now exists in multiple versions with thousands of variants, the logical question arises: Is Allah’s power to preserve Scripture limited? Why would Allah protect the Qur’an through human compilation yet allegedly allow the Torah and Gospel to be corrupted?
Section III: Historical Evidence—Muhammad’s Own Testimony
The most compelling evidence against the Islamic corruption claim comes from Muhammad himself. Historical accounts record that Muhammad consulted and validated the Torah during his lifetime.
Hadith: Sunan Abi Dawud 4449 (Graded Hasan/Reliable)
Narrated Abdullah Ibn Umar: A group of Jews came and invited the Messenger of Allah to Quff. So he visited them in their school. They said: Abul Qasim, one of our men has committed fornication with a woman; so pronounce judgment upon them. They placed a cushion for the Messenger of Allah, who sat on it and said: Bring the Torah. It was then brought. He then withdrew the cushion from beneath him and placed the Torah on it, saying: I believed in thee and in Him Who revealed thee. He then said: Bring me one who is learned among you. Then a young man was brought.
Critical Analysis:
This historical account demonstrates that Muhammad:
Explicitly declared: I believed in thee and in Him Who revealed thee—affirming the Torah’s divine origin.
Treated the Torah as authoritative, placing it on a cushion of honor and using it as the basis for judgment.
Consulted the Torah’s teachings rather than dismissing it as corrupted.
This occurred during Muhammad’s lifetime (A.D. 610–632), during the period the Qur’an was being revealed.
The Central Contradiction:
How can Islam claim the Bible was corrupted when Muhammad himself used and validated the Torah? If the Torah was corrupted in Muhammad’s time, then:
Muhammad would have known it was corrupted.
He would not have used it as an authoritative basis for legal judgment.
He would not have declared belief in it as coming from God.
Conclusion: Islam’s claim that the Bible was corrupted contradicts Islam’s own historical record of Muhammad’s actions and statements. Contradiction is the mark of falsehood.
For Church Members: Response Strategy
Be equipped to explain that the Bible verses Muslims cite as Muhammad prophecies—including Deuteronomy 18:18, Psalm 118:22–23, Isaiah 42:1–13, Habakkuk 3:3–4, Matthew 21:42–43, and John 14:12–17, 26, 28, and John 16:7–14—are not prophecies pointing to Muhammad but rather to Jesus Christ.
Remember that the Qur’an itself confirms the validity of the Torah and Gospel as they existed at the time of Muhammad (A.D. 610–632).
Point to the internal contradictions within Islam: if the Bible was corrupted, how can the Qur’an confirm it? And if Allah could not or would not preserve the Torah and Gospel, why should we trust that Allah preserved the Qur’an when it too has experienced textual variation and standardization?
Stand confidently on the promise that God has preserved His Word. The Bible’s testimony to Jesus Christ as God incarnate, crucified, and risen remains unchanged and unchangeable.
— Eusebio A. Tanicala