Books of the Bible of Christian Bibles is called the Old Testament, which contains, at minimum, the above 24 books but divided into 39 books and ordered differently. The Catholic Church and Eastern Christian churches also hold that certain deuterocanonical books and passages are part of the Old Testament canon. The second part is the New Testament, containing 27 books; the four Canonical gospels, Acts of the Apostles, 21 Epistles or letters and the Book of Revelation. The King James Bible—which has been called "the most influential version of the most influential book in the world, in what is now its most influential language"
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,