Home > Module 1: The Bible vs. Tahrif
Islamic scholars go against the Quran to suggest the Christian scriptures were "changed" by the likes the Council of Nicaea. However, the physical evidence allows us to look before the 7th Century to see this is not true.
Textual criticism is not "criticizing" the biblical text in a negative sense but more like a detective science.
The original "autographs" (the letters actually written by Paul, John, etc.) were written on perishable papyrus and have since disintegrated so scholars use the thousands of surviving copies to reconstruct the original with a high degree of certainty.
For a Muslim audience familiar with the preservation of the Quran, it is helpful to contrast the two methods:
1. The Quran:
Preserved primarily through a centralized oral tradition and a standardized codex (the Uthmanic Recension) that destoyed variations shortly after the death of Muhammad.
2. The New Testament:
It was preserved through a "decentralized" explosion of copies across different continents. This makes "mass corruption" impossible because no single person or council controlled all the copies. There are TWENTY-SEVEN books written by NINE authors.
In historical scholarship, the reliability of an ancient text is measured by the "Bibliographical Test", which examines two criteria:
1. The Time Gap: How much time passed between the original writing and the earliest surviving copy? (A shorter gap reduces the chance for corruption).
2. Manuscript Quantity: How many copies do we have? (A higher number allows us to cross-reference and "filter out" scribal errors).
By every standard of ancient history, the New Testament is the best-attested document in existence. If a skeptic rejects the New Testament as "unreliable," they must also reject the works of Plato, Caesar, and Homer, as these have far less evidence.
Here is how the New Testament compares to other "reliable" works of antiquity. It was already widespread across three continents (Europe, Africa, Asia) for many centuries before the birth of Muhammad and Islam.
| Work | Author | Date Written | Earliest Copy | Time Gap | No. of Manuscripts |
|---|---|---|---|---|---|
| Iliad | Homer | ~800 BC | ~400 BC | ~400 yrs | 1,757 |
| Gallic Wars | Julius Caesar | 100–44 BC | AD 900 | ~1,000 yrs | 251 |
| Tetralogies | Plato | 427–347 BC | AD 900 | ~1,200 yrs | 210 |
| Annals | Tacitus | AD 100 | AD 1100 | ~1,000 yrs | 33 |
| New Testament | Apostles | AD 50–100 | AD 125 | 25–50 yrs | 24,000+ |
Any claim of universal corruption is logically impossible when thousands of manuscripts are spread across thousands of miles.
To "corrupt" all copies of the Bible in the 7th century CE, you would need a large army to find and alter every single copy in every church from Britain to Ethiopia simultaneously!
Critics are quick to point to the "hundreds of thousands of variants" in the manuscripts without realising that textual criticism categorizes these variants to show they do not affect doctrine:
99% are insignificant: These include spelling differences (e.g., "John" spelled with one 'n' or two), word order ("Christ Jesus" vs. "Jesus Christ"), or "nonsense" errors where a tired scribe skipped a line.
0.1% are meaningful but not viable: Variations that change the meaning but are clearly not what the author wrote because they appear in only ONE late manuscript.
The Remainder: A tiny fraction of variants are "meaningful and viable" (e.g., the ending of Mark or the woman caught in adultery). Even if these sections are set aside, not a SINGLE core Christian doctrine (such as the Trinity, the Resurrection, the Atonement), is altered or lost.
A common misconception is that the Bible manuscripts were "changed" during the Middle Ages or by later Church councils. However, there are thousands of manuscripts that pre-date the birth of Muhammad (c. AD 570) by centuries.
1. The Papyri (2nd–3rd Century): Fragments like P52 (John’s Gospel) date to approx. 125 CE. P46 (Paul’s Epistles) and P66 (John) show the text was stable nearly 400 years before Islam began.
2. The Great Uncials (4th Century): Codex Sinaiticus and Codex Vaticanus provide almost the entire Bible in Greek, dating to the 300s CE.
If the New Testament was already widespread in Europe, Africa, and Asia by 350 CE, any attempt to "change" it in 600 CE onwards would be impossible to hide.
The older manuscripts would "expose" the newer ones.
The scriptural evidence for the reliability and preservation of the text of the Christian scriptures comes from the Quran itself and the Christian scriptures.
The Quran often speaks of the Gospel (Injil) as a present authority during the time of Muhammad.
Surah 5:47: "Let the people of the Gospel judge by what Allah has revealed in it. And whoever does not judge by what Allah has revealed—then it is those who are the defiantly disobedient."
If the Gospel were corrupted or "lost" by the 7th century, God would not command Christians to "judge by what is in it."
Surah 10:94: "So if you are in doubt, about that which We have revealed to you, then ask those who have been reading the Scripture before you..."
This assumes the previous scriptures were reliable enough to serve as a reference for truth.
The Bible asserts its own supernatural preservation through the sovereignty of God. Much like the Quran does about itself.
Isaiah 40:8: "The grass withers, the flower fades, but the word of our God will stand forever."
1 Peter 1:24–25: "For 'All flesh is like grass and all its glory like the flower of grass. The grass withers, and the flower falls, but the word of the Lord remains forever.' And this word is the good news that was preached to you."
Matthew 24:35: "Heaven and earth will pass away, but my words will not pass away." (Spoken by Jesus)
Scholars use both Internal and External Evidence to find the original reading:
1. Oldest is usually best: Earlier manuscripts are closer to the source.
2. Geographical Spread: If a reading is found in Egypt, Rome, and Syria, it is likely original.
3. Scribal Analysis: Scholars can identify "slips of the pen." If 99 manuscripts say "Jesus Christ" and one says "Jesus Chirst," the error is obvious and does not "corrupt" the message.
Of the roughly 400,000 "variants" (differences) in New Testament manuscripts, 99% are spelling errors or word order changes that do NOT affect any Christian doctrine.
Table: Primary Greek Papyri (2nd–3rd Century)
| Manuscript | Approx. Date | Biblical Content (Chapters/Books) | Location Found |
|---|---|---|---|
| AD 125 | John 18: fragments of verses 31–33 & 37–38. | Egypt | |
| AD 200 | Gospels & Acts: Portions of Matt 20-26; Mark 4-12; Luke 6-12; John 10-11; Acts 4-17. | Egypt | |
| AD 200 | Pauline Epistles: Rom, Heb, 1 & 2 Cor, Eph, Gal, Phil, Col, 1 Thess. | Egypt | |
| AD 200 | Gospel of John: Nearly complete (John 1:1–14:26 and fragments of other chapters). | Egypt | |
| AD 175–225 | Luke & John: Large portions of Luke 3–24 and John 1–15. | Egypt | |
| AD 250 | Revelation: Rev 9:10–17:2. | Egypt | |
| AD 300 | 1 & 2 Peter; Jude: The earliest known copies of these epistles. | Egypt |
By the time of the Muhammad (6th–7th Century), these Greek manuscripts had already been sitting in libraries and monasteries for 400 to 500 years.
The science of textual criticism allows us to look past the Middle Ages and see with a 99.5% accuracy the words written by the Apostles themselves.
This raises some common objections.
Muslim Objection:
You don't have the original 'Injeel' given to Jesus
Christian Response:
Historians never require the original physical paper to know what an author wrote; they require a reliable transmission chain.
If we can compare 5,000 copies and they all agree on 99.5% of the text, we can be very confident of being very close to the original.
If Islam claims the 'Injeel' was a different book that completely disappeared without leaving a single manuscript trace, that is a claim based on blind faith, whereas the integrity of the New Testament is based on physical, archaeological evidence.
Muslim Objection:
The Council of Nicaea Changed the Bible
Christian Response:
Many Muslims believe Emperor Constantine gathered the bishops and "voted" on which books to keep and which to burn to hide the "true" Muslim-like Gospel.
This is a historical myth. The manuscripts we have from before the Council of Nicaea (like the Chester Beatty Papyri) match the manuscripts from after the Council. The Council of Nicaea was about the Arian Controversy (the nature of Christ), not the Bible canon and agreeing the date for Easter. No historical record from Nicaea mentions a vote on the canon.
We have manuscripts like and (see previous module) that date 125 years before Nicaea. They contain the same Gospels and the same Trinity-based theology we use today.
No group of men 'changed' the text because the text was already in the hands of thousands of people across the Roman Empire. You cannot change what you do not control.
Muslim Objection:
There are 400,000 Errors
Christian Response:
This is the most common objection, often popularized by skeptics like Bart Ehrman. Textual criticism provides the direct refutation.
| Type of Variant | Percentage | Impact on Christian Doctrine |
|---|---|---|
| Spelling / Nonsense Slips | ~70% | Zero (e.g., "John" vs "Jhon") |
| Synonyms / Word Order | ~25% | Zero (e.g., "Christ Jesus" vs "Jesus Christ") |
| Meaningful but Not Viable | ~4% | Zero (Found in late/poor manuscripts) |
| Meaningful and Viable | < 1% | Negligible (No core doctrine rests on these) |
The reason we have 400,000 variants is because we have so many manuscripts. If we only had one manuscript (like a single Quranic codex), we would have zero variants but zero ways to verify the text. The variants actually help us reconstruct the original through "cross-referencing."
Muslim Objection:
The Gospel of Barnabas is the True Injil
Christian Response:
This "Gospel" claims Judas was crucified instead of Jesus and that Jesus predicted Muhammad by name.
The Evidence of Forgery:
Anachronisms: It mentions 14th-century Italian concepts (like the "Jubilee year" occurring every 100 years, a change made by the Pope in AD 1300).
Geography: It claims Nazareth is a port city on the Sea of Galilee (it is actually a landlocked mountain town).
Contradicts Quran: It claims Muhammad is the "Messiah," while the Quran clearly gives that title only to Jesus (Surah 3:45).
Muslim Objection:
The Bible Was Totally Corrupted
Christian Response:
The Quran actually commands Muslims to respect the Bible that existed in the 7th century.
| Verse Reference | Arabic Concept | Evidence / Logic |
|---|---|---|
| Surah 10:94 | Ask the People of the Book | If the Bible was corrupted, why tell Muhammad to use it as a reference? |
| Surah 5:47 | Let the People of the Gospel judge | You cannot judge by a book that doesn't exist or is "lost." |
| Surah 2:79 | Woe to those who write... | Refers to uneducated Jews writing their own books, not the Bible itself. |
| 1 Peter 1:25 | Word of the Lord remains | Biblically, God promises His Word cannot be "defeated" by man. |
If an Isalm scholars say "The Bible is corrupted," then ask them: "When was it corrupted?"