CCC 1236
Christian Mystery›SECTION TWO THE SEVEN SACRAMENTS OF THE CHURCH›CHAPTER ONE THE SACRAMENTS OF CHRISTIAN INITIATION›III. How is the Sacrament of Baptism Celebrated?
The proclamation of the Word of God enlightens the candidates and the assembly with the revealed truth and elicits the response of faith, which is inseparable from Baptism. Indeed Baptism is "the sacrament of faith" in a particular way, since it is the sacramental entry into the life of faith.