Development of the Old Testament canon "Apocrypha" ("hidden"). To counter Luther's "heresy", the fourth session of the Catholic Council of Trent in 1546 confirmed that the deuterocanonical books were equally authoritative as the protocanonical in the Canon of Trent in the year Luther died. Following Jerome's "Veritas Hebraica" (truth of the Hebrew) principle, the Protestant Old Testament consists of the same books as the Hebrew Bible, but the order and division of the books are different. Protestants number the Old Testament books at 39, while the Hebrew Bible numbers the same books as 24. The Hebrew Bible counts Samuel, Kings, and Chronicles as one book each,
Development of the Old Testament canon Proverbs, Ecclesiastes, Song of Songs, Wisdom of Solomon, and Ecclesiasticus. The four books of Kings refer to the two books of Samuel and the two books of Kings (see Books of Kings Composition) Successively the Council of Carthage (419) in its "Canon 24" listed exactly the same Old Testament Canon of the previous councils. Consequently the Roman Catholic canon established by the Council of Trent in 1546 differs from that of Augustine of Hippo wrote in his book "On Christian Doctrine (Book II Chapter 8)" (397 AD) only in respect of the two books of Ezra. Augustine counted both Greek