'Additions to New Testament': Mark 16:9-20 (the 'longer ending,' including the basis for Pentecostal snake-handling, poison-drinking, and tongues-speaking practice) and John 7:53-8:11 (the pericope adulterae, source of 'let him who is without sin cast the first stone') were both later scribal additions, not part of the original Gospels.

This is correct, well-established textual criticism, not a fringe skeptical claim, and it should be conceded plainly rather than minimized. **The evidence**: Both passages are absent from our two oldest complete Greek New Testament manuscripts, Codex Sinaiticus and Codex Vaticanus (4th century) — Mark ends at 16:8 in both, and John moves directly from 7:52 to 8:12. Both passages are bracketed and footnoted in the standard critical Greek texts used by scholars worldwide (NA28/UBS5) and flagged with editorial notes in virtually every modern translation (NIV, ESV, NRSV, NASB all mark that the earliest manuscripts lack these verses). Bruce Metzger's *A Textual Commentary on the Greek New Testament* — the standard reference for the UBS committee's decisions — documents the case for both passages in detail: internal stylistic evidence (Mark 16:9-20 contains roughly a dozen words and constructions not used elsewhere in Mark, and the transition from v.8 is abrupt), and for the pericope adulterae, vocabulary and style closer to Luke than John, plus the fact that the passage 'floats' to different locations in different manuscript families (after John 7:36, after John 21:24, or after Luke 21:38 in some witnesses) — a classic sign of a later, circulating tradition being inserted at different points by different scribes rather than an original, stable part of the text. **Why this is not fatal — a textual-criticism success story, not a crisis**: The very fact that these two passages can be identified with high confidence, down to their approximate insertion points, is only possible because the New Testament's manuscript base is enormous and diverse — over 5,800 Greek manuscripts, plus early versions (Old Latin, Syriac, Coptic) and thousands of patristic citations — giving textual critics far more comparative data than exists for almost any other work from antiquity, where a handful of manuscripts centuries removed from composition is typical. This documented, transparent, publicly examinable manuscript tradition is precisely why the additions are catchable at all, and it is evidence the discipline works, not that it has failed. These two passages account for roughly a dozen verses out of roughly 138,000 words in the New Testament, and together with the Comma Johanneum (1 John 5:7-8) are essentially the only sizable disputed passages recognized by conservative and critical textual scholars alike — Kurt Aland and Metzger both note that well over 99% of the New Testament text carries no meaningful uncertainty affecting doctrine. No essential Christian doctrine — the deity of Christ, his bodily resurrection, justification, the atonement — depends on either passage; each is independently and multiply attested elsewhere across the other Gospels and in Paul's letters, which contain a fully articulated high Christology earlier than the Gospels were written down (see Bauckham and Larry Hurtado on the earliness of NT Christology). Snake-handling and poison-drinking practice, based on Mark 16:18, was always a historically marginal, early-20th-century Appalachian phenomenon (the Church of God with Signs Following), not mainstream Christian doctrine or practice across church history — identifying its textual basis as secondary undercuts a fringe reading, not the faith itself. The early church was itself aware of and transparent about the disputed ending of Mark: both Eusebius (*Ad Marinum*) and Jerome record that the 'accurate' manuscripts known to them ended Mark at 16:8 — patristic evidence of scribal honesty about the uncertainty, not concealment of it.

Textual criticism's methodology is a public, verifiable paper trail — thousands of manuscripts, ancient versions, and patristic quotations that can be independently cross-checked by anyone, believer or skeptic — which is precisely why these two additions could be isolated centuries after they entered the tradition. That transparency is strong positive evidence for confidence in the text as a whole: readers are not asked to accept NT reliability on faith alone but can verify the evidentiary basis for it, and where genuine uncertainty exists, it is openly flagged in modern critical editions and translations rather than hidden.