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
Mark 16 Old Testament, but they are each due to incidental factors in the production of the codex: a change to the column-format, a change of scribes, and the conclusion of the Old Testament portion of the text. The blank column between Mark 16:8 and the beginning of Luke, however, is deliberately placed. It has been suggested that Codex Vaticanus may be reflecting a Western order of the gospels with Mark as the last book (Matthew, John, Luke, and Mark). Other manuscripts that omit the last twelve verses include: minuscule 304 (12th century), Syriac Sinaiticus (from the late 4th-century), and a Sahidic