Section — McHugh–Callan, Moral Theology
Duties of Adult Recipients
Duties of Adult Recipients of Baptism or of Those Who Have the Use of Reason
Duties of Adult Recipients of Baptism or of Those Who Have the Use of Reason.—(a) Before Baptism.—An unbaptized person who has faith and who sees the necessity of Baptism, is gravely obliged to ask for Baptism at once, if he is in danger of death, or as soon as he conveniently can, if he is not in danger of death; for since Baptism is the divinely appointed means of entering the Church and of sharing in its privileges, he who would delay it unduly would disobey an important command of God and would be seriously neglectful of his own salvation. For a sufficient reason, however (e.g., for the sake of instruction or probation, or to avoid persecution), Baptism may be delayed even for years; but the catechumen should then make at once an act of contrition or charity so as to obtain the benefit of Baptism of desire. Converts should prepare for Baptism by taking a course of instructions, or, when there is danger of death, a summary instruction (791 sqq.).
(b) At Baptism.—The internal dispositions include, besides intention, faith and repentance: “He that believeth and is baptized shall be saved” (Mark, xvi. 16); “Do penance and be baptized” (Acts, ii. 38). There must be an explicit faith in the four chief mysteries (see 789). In this country converts who are being baptized conditionally make an abjuration and profession of faith before Baptism, and go to confession and receive conditional absolution after Baptism. The Code recommends that those who are well receive Baptism fasting; and that, unless grave reason excuses, the neophyte assist at Mass and receive Communion after his Baptism (Canon 753).
(c) After Baptism.—Since Baptism makes one a member of the Church, those who receive it are subject to church laws. The promises made in Baptism are not strictly vows, but an engagement of loyalty to the faith and the commandments (see 2191).