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 named as Canonical books the books of the Hebrew Bible and the deuterocanonical books named as "Ecclesiastical" books. Pope Innocent I (405 AD) in a letter sent to the bishop of Toulouse cited as Canonical books the books of the Hebrew Bible plus the deuterocanonical books as a part of the Old Testament Canon. The Decretum Gelasianum which is a work written by an anonymous scholar between 519 and 553 contains a list of books of Scripture presented as having been made Canonical by the Council of Rome (382 AD). This list mentions the Hebrew Bible plus the deuterocanonical books