Development of the New Testament canon writers. (Books not attributed to these three are: Matthew, Mark, Luke, Acts, James, and Jude. The authorship of Hebrews has long been disputed.) Many modern Protestants point to four "Criteria for Canonicity" to justify the books that have been included in the Old and New Testament, which are judged to have satisfied the following: The basic factor for recognizing a book's canonicity for the New Testament was divine inspiration, and the chief test for this was apostolicity. The term "apostolic" as used for the test of canonicity does not necessarily mean apostolic authorship or derivation, but rather "apostolic authority". "Apostolic
New Testament supporting the Trinity doctrine in 1 John to have been a later addition. According to Norman Geisler and William Nix, "The New Testament, then, has not only survived in more manuscripts than any other book from antiquity, but it has survived in a purer form than any other great book—a form that is 99.5% pure" The often referred to Interpreter's Dictionary of the Bible, a book written to prove the validity of the New Testament, says: " A study of 150 Greek [manuscripts] of the Gospel of Luke has revealed more than 30,000 different readings... It is safe to say