A Treatise on Faith and the Creed, by Augustine, "constitutes an exposition of the several clauses of the so-called Apostles' Creed. The questions concerning the mutual relations of the three Persons in the Godhead are handled with greatest fullness; in connection with which, especially in the use made of the analogies of Being, Knowledge, and Love, and in the cautions thrown in against certain applications of these and other illustrations taken from things of human experience, we come across sentiments which are also repeated in the City of God, the books on the Trinity, and others of his doctrinal writings" (Introductory Note to A Treatise on Faith and the Creed, by Augustine).