Protocanonical books

The protocanonical books are those books of the Old Testament that are also included in the Hebrew Bible (the Tanakh) and that came to be considered canonical during the formational period of orthodox Christianity. The Old Testament is entirely rejected by some forms of Gnosticism, but the Hebrew Bible was adhered to even more tightly by Jewish Christians than Gentile Christians. The term protocanonical is often used to contrast these books to the deuterocanonical books or apocrypha, which "were sometimes doubted" by some in the early church, and are considered non-canonical by most Protestants. There are typically 39 protocanonical books in most Christian bibles, which correspond to the 24 books in the Jewish Tanakh. The list of protocanonical books is Genesis, Exodus, Leviticus, Numbers, Deuteronomy, Joshua, Judges, Ruth, 1–2 Samuel, 1–2 Kings, 1–2 Chronicles, Ezra, Nehemiah, Esther, Job, Psalms, Proverbs, Ecclesiastes, Song of Solomon, Isaiah, Jeremiah, Lamentations, Ezekiel, Daniel, Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, and Malachi. Biblical canon These books are typically 39 in number in most English-language bibles. Based on the Jewish tradition of the Tanakh, these same books may be counted as 24 books, counting the twelve minor prophets together as one book, one book each for 1 and 2 Samuel, 1 and 2 Kings, and 1 and 2 Chronicles, as well as a single book for Ezra and Nehemiah. In his prologues, Jerome counted the same content as 22 books, combining Jeremiah with Lamentations and Judges with Ruth. The list given in Codex Hierosolymitanus numbers the same books at 27. These enumerations were sometimes given a numerological significance. The 22-book enumeration was said to represent the number of letters in the Hebrew alphabet; the 5 double books (Judges/Ruth, 1/2 Samuel, 1/2 Kings, 1/2 Chronicles, Ezra/Nehemiah, and Jeremiah/Lamentations) representing the five Hebrew letters that have double forms, chaph, mem, nun, phe, and sade.