Two manuscript families
Thousands of handwritten Greek New Testament manuscripts survive, copied over some fourteen centuries before the printing press. Textual scholars broadly group them into families by their shared readings. Two matter most for this question:
- The Byzantine, or Majority, tradition — the text represented by the overwhelming majority of surviving manuscripts, copied and recopied in active use across the Greek-speaking church for over a thousand years. This is the family behind the printed editions of Erasmus, Stephanus, and Beza that the KJV translators used, later named the Textus Receptus (“received text”) by a 1633 Elzevir print edition.
- The Alexandrian tradition — a smaller set of older surviving manuscripts from Egypt, most famously Codex Sinaiticus and Codex Vaticanus, both copied in the fourth century. Rediscovered and popularized in the 19th century, this tradition became the base of the modern critical Greek text.
Erasmus, Stephanus, and Beza
Desiderius Erasmus published the first printed Greek New Testament in 1516, compiling it from the Byzantine manuscripts available to him in Basel. Robert Stephanus (Estienne) refined the text through several 16th-century editions, adding the verse numbers still used today. Theodore Beza, Calvin’s successor in Geneva, produced further editions consulted by the KJV translators. Together, these editions represent the Received Text tradition — a text assembled from, and consistent with, the manuscript stream in continuous use by the church.
The 19th-century shift
In 1859, Codex Sinaiticus was found at St. Catherine’s Monastery in the Sinai desert. Alongside the already-known Codex Vaticanus, it became central to a new approach to New Testament textual criticism developed by Cambridge scholars Brooke Foss Westcott and Fenton Hort in the 1880s. Their critical Greek text departed from the Received Text in thousands of small readings and several longer passages, and it became the ancestor of the modern critical editions (Nestle-Aland / United Bible Societies text) that underlie most contemporary English translations.
KJV-only believers raise several concerns about this shift: that Sinaiticus and Vaticanus disagree with each other in thousands of places, suggesting neither was a carefully checked, publicly used copy; that both were essentially unused by the church for over a millennium before their rediscovery, unlike the Byzantine manuscripts in continuous liturgical use; and that a textual theory favoring the oldest surviving copies over the most numerous and consistently used ones is itself a modern scholarly assumption, not a neutral fact.
Why the manuscript count matters
Roughly 95 percent of all surviving Greek New Testament manuscripts belong to the Byzantine family behind the Textus Receptus. KJV-only believers argue that a text so widely and continuously copied by the worshiping church — rather than a pair of divergent, disused fourth-century codices — is the more credible record of what the apostolic writings actually said, consistent with the belief that God preserved His Word through the ordinary use of His people rather than through a manuscript that sat unread for centuries. See how this theological conviction is grounded in Scripture on the preservation page.
What actually changes in the text
The practical effect of following the critical text instead of the Received Text is a set of specific omissions, brackets, and footnotes in modern translations — some affecting well-known passages. See the concrete, verse-by-verse differences on the comparison page.
A note on the claim: textual criticism is a genuine academic field, and thoughtful Christians land on different sides of this question. This page presents the historic, documented case for the Received Text as KJV-only believers understand it, not a claim that every textual scholar agrees.