Most arguments about whether the Bible has changed depend on a chain of reasoning: manuscripts were copied by hand, copying introduces error, therefore the text we hold is not the text that was written. The reasoning is sound, but it is reasoning, and it can be argued with. There is a shorter route. One complete Greek Bible from the middle of the fourth century still exists, it has been photographed page by page, and anyone with a browser can read it. Set it beside a King James Bible and the differences are not inferred. They are simply seen.
The manuscript is Codex Sinaiticus, written around 330-360 AD and discovered at the Monastery of St Catherine in Sinai. It is the oldest surviving complete New Testament. Since 2009 the whole codex has been online in high resolution, with transcription and translation, at codexsinaiticus.org. What follows can be checked there directly, verse by verse.
Passages in the King James Bible that Sinaiticus does not contain
These are not subtle differences of wording. They are whole verses and, in two cases, whole passages, printed in the King James Version and absent from the fourth-century codex.
| Passage | What the King James Version has |
|---|---|
| Matthew 6:13b | "For thine is the kingdom, and the power, and the glory, for ever. Amen." - the closing doxology of the Lord's Prayer |
| Matthew 12:47 | Someone tells Jesus that his mother and brothers are outside |
| Matthew 16:2b-3 | The saying about a red sky and reading the signs of the times |
| Matthew 17:21 | "Howbeit this kind goeth not out but by prayer and fasting." |
| Matthew 18:11 | "For the Son of man is come to save that which was lost." |
| Matthew 23:14 | The woe against scribes and Pharisees for devouring widows' houses |
| Mark 7:16 | "If any man have ears to hear, let him hear." |
| Mark 9:44 and 9:46 | "Where their worm dieth not, and the fire is not quenched" - twice |
| Mark 11:26 | "But if ye do not forgive, neither will your Father which is in heaven forgive your trespasses." |
| Mark 15:28 | "And the scripture was fulfilled, which saith, And he was numbered with the transgressors." |
| Mark 16:9-20 | Twelve verses: the resurrection appearances, the promise of signs, the ascension. Sinaiticus ends the Gospel at 16:8. |
| John 5:4 | The angel who descends to trouble the water of the pool |
| John 7:53-8:11 | The woman caught in adultery, and "He that is without sin among you, let him first cast a stone at her." |
| Acts 8:37 | The Ethiopian's confession: "I believe that Jesus Christ is the Son of God." |
| Acts 15:34 | "Notwithstanding it pleased Silas to abide there still." |
| Acts 24:7 | Lysias the chief captain taking Paul out of the Jews' hands |
| Romans 16:24 | "The grace of our Lord Jesus Christ be with you all. Amen." |
Two of these deserve separate attention because of how well known they are. The last twelve verses of Mark contain the risen Christ's commission, the promise that believers will take up serpents and drink poison unharmed, and the ascension. They are absent from Sinaiticus and from Codex Vaticanus, the other great fourth-century Bible. They appear in fifth-century manuscripts - Alexandrinus, Ephraemi Rescriptus, Bezae - which is to say they enter the surviving record a century after our oldest complete copy ends the Gospel without them.
The woman caught in adultery is the same shape of story. It is absent from Sinaiticus and Vaticanus; the earliest Greek manuscript to carry it is Codex Bezae in the fifth century. In some later manuscripts it wanders, appearing after John 7:36, at the end of John, or in Luke - the mark of a passage that entered the tradition without a settled home.
The clause that names the Trinity
One entry belongs in a category of its own. The King James Version at 1 John 5:7-8 reads: "For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one. And there are three that bear witness in earth, the Spirit, and the water, and the blood: and these three agree in one."
Sinaiticus has only the second half: the Spirit, the water and the blood. The heavenly witnesses - the one place in the entire Bible where Father, Word and Holy Spirit are named together and declared one - are not there.
Nor are they in any other Greek manuscript of the fourth century, or the fifth, or the tenth. The clause is absent from every Greek manuscript before roughly the fourteenth century. It grew up in Latin, entered the printed Greek text only when Erasmus was pressed to include it and a manuscript containing it was duly produced, and passed from there into the Textus Receptus and so into the King James Version. Modern translations remove it or footnote it. This is not a Muslim reading of the evidence; it is the settled conclusion of Christian textual scholarship, and it is why the clause has quietly left most Bibles printed in the last century.
Where the oldest manuscript says more, not less
It would be a misreading of the evidence to treat this as a story of things only ever being lost. Sinaiticus also contains material the King James Version does not, and those cases are in some ways more revealing, because a copyist has no obvious motive to invent them.
Matthew 24:36. The King James Version has Jesus say that of that day and hour knoweth no man, "no, not the angels of heaven, but my Father only." Sinaiticus reads "nor the angels of heaven, nor the Son, but the Father only." The words "nor the Son" stand in the fourth-century text and are missing from the King James. A phrase in which Jesus disclaims knowledge is exactly the phrase a later scribe would find difficult, and the direction of the change is therefore telling.
Matthew 27:49. Sinaiticus adds, before Jesus dies, that another took a spear and pierced his side, and out came water and blood - the detail John places after the death. As it stands in Sinaiticus the sequence differs from John's, and the addition is not in the King James Version.
Corrections visible on the page itself
Sinaiticus was corrected by later hands, and those corrections were not erased. They sit on the parchment, and the photographs show them. Two are worth naming.
At Mark 1:1 the original scribe wrote "The beginning of the gospel of Jesus Christ." The words "the Son of God" were added afterwards by a corrector. The opening line of the Gospel, as the first hand left it, does not carry the title.
At Luke 24:51 the original scribe wrote that Jesus was parted from them. The words "and was carried up into heaven" were added later. The ascension, in this manuscript, is a correction.
Nothing here has to be reconstructed or argued for. The first hand and the correcting hand are distinguishable in the images, and the text of each is transcribed on the same website.
What Christian scholarship says about all this
An argument is worth little if it only engages the weakest reply, so the strongest reply should be stated plainly. Christian textual scholars do not dispute these facts. They discovered them. The passages above are bracketed, footnoted or removed in the New International Version, the English Standard Version and the New Revised Standard Version, with notes saying the earliest manuscripts do not contain them. None of this is a concession extracted under pressure; it is printed in the Bibles sold in Christian bookshops.
The standard response runs along three lines. First, that the variants are known and catalogued, which is a mark of an unusually well-documented transmission rather than a hidden scandal - we can see the changes precisely because so many manuscripts survive. Second, that no Christian doctrine rests on these passages alone; the Trinity is defended from other texts, the resurrection is narrated in three other Gospels. Third, that the King James Version rests on a late Byzantine text type, so comparing it with a fourth-century codex measures the distance between two textual traditions rather than proving corruption of one.
Each of these has real force, and a Muslim reader who ignores them is arguing with nobody. The second in particular is worth granting: whatever else is true, the doctrine of the Trinity does not stand or fall with 1 John 5:7.
What the replies do not settle
Granting all of that, something is left over, and it is not small.
For roughly three hundred years, English-speaking Christians read in their Bibles that the Father, the Word and the Holy Ghost are one, and read it as scripture. They read the risen Christ commissioning the apostles at the end of Mark. They read the Ethiopian confessing the Son of God before baptism. Millions of people held those words to be the preserved speech of God. They were not.
The question this raises is not whether scholars can identify the additions - clearly they can. It is what it means for a scripture to be preserved. If a verse can be carried in the text for centuries, preached from, and used to settle a doctrinal argument, and then be removed once older manuscripts are found, then what the community possessed during those centuries was not a protected text. It was the best text then available, which is a different thing.
This is precisely the distinction the Qur'an draws when it describes itself. The claim made for the Qur'an is not that scholars can reconstruct it, but that it was kept: "Indeed, it is We who sent down the Qur'an and indeed, We will be its guardian" (Qur'an 15:9). That is a claim about custody, and it is testable in the same way - by asking what the oldest manuscripts contain. The Birmingham folios, radiocarbon dated to within decades of the Prophet's lifetime, and the Sana'a and Topkapi manuscripts, carry the same text Muslims recite today.
The Muslim position has never been that the Bible contains nothing true. The Qur'an speaks of the Torah and the Gospel with honour, as revelations genuinely given. The position is that what was given and what has been kept are not the same thing, and that the difference is visible. On this one point, the photographs of a fourth-century codex make the case better than any argument could.