by Paul, for a time ending all debate on the subject. Augustine of Hippo declared without qualification that one is to "prefer those that are received by all Catholic Churches to those which some of them do not receive" (On Christian Doctrines 2.12). In the same passage, Augustine asserted that these dissenting churches should be outweighed by the opinions of "the more numerous and weightier churches", which would include Eastern Churches, the prestige of which Augustine stated moved him to include the Book of Hebrews among the canonical writings, though he had reservation about its authorship. Philip Schaff says that "the council of Hippo in 393, and the third (according to another reckoning the sixth) council of Carthage in 397, under the influence of Augustine, who attended both, fixed the catholic canon of the Holy Scriptures, including the Apocrypha of the Old Testament, ... This decision of the transmarine church however, was subject to ratification; and the concurrence of the Roman see it received when Innocent I and Gelasius I (A.D. 414) repeated the same index of biblical books. This canon remained undisturbed till the sixteenth century, and was sanctioned by the council of Trent at its fourth session." According to Lee Martin McDonald, the Revelation was added to the list in 419. These councils were convened under the influence of Augustine of Hippo, who regarded the canon as already closed. Pope Damasus I's Council of Rome in 382 (if the Decretum is correctly associated with it) issued a biblical canon identical to that mentioned above. Likewise, Damasus' commissioning of the Latin Vulgate edition of the Bible, 383, proved instrumental in the fixation of the canon in the West. In a letter ( 405) to Exsuperius of Toulouse, a Gallic bishop, Pope Innocent I mentioned the sacred books that were already received in the canon. When bishops and Councils spoke on the matter of the Biblican canon, however, they were not defining something new, but instead "were ratifying what had already become the mind of the Church". Thus from the 4th century there existed unanimity in the West concerning the New Testament canon as it is today, with the exception of the Book of Revelation. In the 5th century the East too, with a few exceptions, came to accept the Book of Revelation and thus came into harmony on the matter of the New Testament canon. As the canon crystallised,