Chapter 3 — Part I: The Creed — Article I: I Believe in God, the Father Almighty, Creator of Heaven and Earth
Section 29. Let him, however, who by the divine bounty believes these truths, constantly beseech and implore God and the Father, who made all things out of nothing, and ordereth an things sweetly, who gave us power to become the sons of God, and who made known to the human mind the mystery of the Trinity -- let him, I say, pray unceasingly that, admitted one day into the eternal tabernacles, he may be worthy to see how great is the fecundity of the Father, who contemplating and understanding Himself, begot the Son like and equal to Himself, how a love of charity in both, entirely the same and equal, which is the Holy Ghost, proceeding from the Father and the Son, connects the begetter and the begotten by an eternal and indissoluble bond; and that thus the Essence of the Trinity is one and the distinction of the Three Persons perfect.