The work 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.

The passage referred to in the Retractations is as follows: About the same period, in presence of the bishops, who gave me orders to that effect, and who were holding a plenary Council of the whole of Africa at Hippo-Regius, I delivered, as presbyter, a discussion on the subject of Faith and the Creed. This disputation, at the very pressing request of some of those who were on terms of more than usual intimacy and affection with us, I threw into the form of a book, in which the themes themselves are made the subjects of discourse, although not in a method involving the adoption of the particular connection of words which is given to the competentes to be committed to memory.