Commentary on the Apostles' Creed
The Books of the Old and New Testaments
Of the Old Testament, then, there have been handed down first of all the five books of Moses: Genesis, Exodus, Leviticus, Numbers and Deuteronomy. Then Joshua son of Nun; the Book of Judges, together with Ruth; then four books of Kingdoms, which the Hebrews count as two; the Book of Things Left Out, which is entitled the Book of Days, that is, Chronicles; and two books of Ezra, that is, Ezra and Nehemiah, which the Hebrews count as one; and Esther. Of the Prophets: Isaiah, Jeremiah, Ezekiel and Daniel; and also the twelve shorter prophets, as one book. Job also, and the Psalms of David, one book each. Solomon gave three books to the churches: Proverbs, Ecclesiastes and the Song of Songs. These make up the books of the Old Testament.
Of the New Testament there are four Gospels, Matthew, Mark, Luke and John; the Acts of the Apostles, written by Luke; fourteen letters of the apostle Paul; two of the apostle Peter; one of James, the brother of the Lord and an apostle; one of Jude; three of John; and the Revelation of John. These are the books which the fathers have included within the canon, and from which they would have us draw the proofs of our faith.