Didascalicon, Book IV: the order and number of the divine books
Chapter VI. On the authors of the New Testament
Many wrote Gospels, but some, without the Holy Spirit, tried rather to arrange a narrative than to weave the truth of history. Hence the holy Fathers, taught by the Holy Spirit, received only four into authority, the rest being rejected, that is of Matthew, Mark, Luke and John, after the likeness of the four rivers of paradise, and the four rings of the ark, and the four living creatures in Ezechiel. First Matthew wrote his Gospel in Hebrew; second Mark in Greek; third Luke, among all the evangelists most Greek in Greece, wrote his Gospel to Theophilus the bishop, to whom he also wrote the Acts of the Apostles; fourth and last John wrote the Gospel. Paul wrote fourteen Epistles, ten to Churches, four to persons. The last, to the Hebrews, most say is not Paul’s; and some say Barnabas wrote it; others suspect Clement. The canonical epistles are seven: one of James, two of Peter, three of John, one of Jude. The Apocalypse John the apostle wrote, banished in exile to the island of Patmos.