Roman Catechism 16.138

Chapter 16 — Part II: The Sacraments — Baptism

Section 138. The Profession Of Faith — Next, standing at the baptismal font, he is interrogated by the priest in these words: Dost thou believe in God, the Father Almighty? To which he answers: I believe. Being similarly questioned on the remaining Articles of the Creed, he solemnly professes his faith. These two promises contain, it is clear, the sum and substance of the law of Christ.