Matthew 12:47, 18:11, and 17:21 — Three Verses Added by Scribes and Absent from Every Ancient Manuscript
Three verses in the Gospel of Matthew are absent from every major ancient manuscript and every critical Greek edition. They were added by later scribes — and the doctrinal problems each verse creates explains precisely why the critical tradition has removed them.
Matthew 12:47 — “Your Mother and Brothers Are Standing Outside”
The Verse
Multiple English translations render this verse — SVD, ALAB, GNA, JAB, and KJV all include it. The Latin Vulgate also contains it: “Dixit autem ei quidam ecce mater tua et fratres tui foris stant quaerentes te.”
However, the critical Greek editions — including the Westcott-Hort text (GNT-WH) — omit it entirely, marking it as a later addition.
Manuscript Evidence
The verse is absent from the Vaticanus Codex:

The verse is also absent from the Sinaiticus Codex:

The Alexandrian Codex likewise omits this verse.
Doctrinal Importance

Matthew 18:11 — “The Son of Man Came to Save the Lost”
The Verse
Multiple translations include it — SVD, ALAB, GNA, and KJV. The Latin Vulgate contains it: “Venit enim Filius hominis salvare quod perierat.” The critical Greek texts (GNT-WH) omit it entirely.
Manuscript Evidence
The verse is absent from the Sinaiticus Codex:

The verse is also absent from the Vaticanus Codex:

The Alexandrian Codex likewise omits this verse.
Doctrinal Importance
The interpolated verse 11 — “The Son of Man came to save the lost” — is inserted into a discussion about children and calls them “the lost.” This is internally contradictory: Jesus has just described children as the model of those who enter the kingdom of heaven. Calling them “the lost” whom he came to save contradicts the entire argument of the passage. The verse was copied from Luke 19:10 and inserted here by a scribe who did not notice the contextual contradiction it created.

Matthew 17:21 — “This Kind Goes Out Only by Prayer and Fasting”
The Verse
Multiple translations include it — SVD, ALAB, GNA, JAB, and KJV. The critical Greek text (GNT-WH) omits it entirely.
Manuscript Evidence
The verse is absent from the Sinaiticus Codex:

The verse is also absent from the Vaticanus Codex:

The Alexandrian Codex likewise omits this verse.
Doctrinal Importance
If Jesus gave his disciples power to cast out demons — which the Gospels explicitly record — is there a class of demon that falls outside this power? Does this mean the divine power Jesus granted is insufficient for some cases?
And by what power do prayer and fasting expel what the power of Jesus cannot? To whom are the prayers and fasting directed? If directed to the Father, this implies a power above and beyond what Jesus can provide. If directed to Jesus himself — Jesus was physically present with his disciples at that moment. Would they pray and fast to him while he himself was standing there?
The verse, at minimum, implies that there is a form of spiritual power that operates through human discipline — prayer and fasting — that achieves what the authority of Jesus could not. This directly undermines the doctrine of his divinity. The omission from the oldest manuscripts makes clear why the critical tradition removed it.
