Some list twenty-five canonical books of the Old Testament, others list thirty-five, and they do this without any dissent. You see, those who list twenty-two join Ruth with the Book of Judges and Lamentations with Jeremiah. Those who list twenty-five separate Nehemiah from Ezra, and the rest call it 2 Ezra. Those who list thirty-five count the Minor Prophets as individual books, though others count them as a single book. Regarding these canonical books of the Old Testament, Augustine says: “There really should have been few of them, lest what must be bright by religion become cheap by multitude; yet they should not be so few that their agreement would not be miraculous” (De civ. Dei, bk. 18, c. 41).
On the Nature of Theology and on Scripture