Secondly, a man may be called a sinner because he wills to sin and purposes to remain in sin: and on sinners in this sense the sacrament of Baptism should not be conferred. First, indeed, because by Baptism men are incorporated in Christ, according to Gal. 3:27: "As many of you as have been baptized in Christ, have put on Christ." Now so long as a man wills to sin, he cannot be united to Christ, according to 2 Cor. 6:14: "What participation hath justice with injustice?" Wherefore Augustine says in his book on Penance (Serm. cccli) that "no man who has the use of free-will can begin the new life, except he repent of his former life." Secondly, because there should be nothing useless in the works of Christ and of the Church. Now that is useless which does not reach the end to which it is ordained; and, on the other hand, no one having the will to sin can, at the same time, be cleansed from sin, which is the purpose of Baptism; for this would be to combine two contradictory things. Thirdly, because there should be no falsehood in the sacramental signs. Now a sign is false if it does not correspond with the thing signified. But the very fact that a man presents himself to be cleansed by Baptism, signifies that he prepares himself for the inward cleansing: while this cannot be the case with one who purposes to remain in sin. Therefore it is manifest that on such a man the sacrament of Baptism is not to be conferred.
Reply Obj. 1: The words quoted are to be understood of those sinners whose will is set on renouncing sin.
Reply Obj. 2: The physician of souls, i.e. Christ, works in two ways. First, inwardly, by Himself: and thus He prepares man's will so that it wills good and hates evil. Secondly, He works through ministers, by the outward application of the sacraments: and in this way His work consists in perfecting what was begun outwardly. Therefore the sacrament of Baptism is not to be conferred save on those in whom there appears some sign of their interior conversion: just as neither is bodily medicine given to a sick man, unless he show some sign of life.
Reply Obj. 3: Baptism is the sacrament of faith. Now dead faith does not suffice for salvation; nor is it the foundation, but living faith alone, "that worketh by charity" (Gal. 5:6), as Augustine says (De Fide et oper.). Neither, therefore, can the sacrament of Baptism give salvation to a man whose will is set on sinning, and hence expels the form of faith. Moreover, the impression of the baptismal character cannot dispose a man for grace as long as he retains the will to sin; for "God compels no man to be virtuous," as Damascene says (De Fide Orth. ii). _______________________
FIFTH ARTICLE [III, Q. 68, Art. 5]
Whether Works of Satisfaction Should Be Enjoined on Sinners That Have
Been Baptized?
Objection 1: It seems that works of satisfaction should be enjoined on sinners that have been baptized. For God's justice seems to demand that a man should be punished for every sin of his, according to Eccles. 12:14: "All things that are done, God will bring into judgment." But works of satisfaction are enjoined on sinners in punishment of past sins. Therefore it seems that works of satisfaction should be enjoined on sinners that have been baptized.
Obj. 2: Further, by means of works of satisfaction sinners recently converted are drilled into righteousness, and are made to avoid the occasions of sin: "for satisfaction consists in extirpating the causes of vice, and closing the doors to sin" (De Eccl. Dogm. iv). But this is most necessary in the case of those who have been baptized recently. Therefore it seems that works of satisfaction should be enjoined on sinners.
Obj. 3: Further, man owes satisfaction to God not less than to his neighbor. But if those who were recently baptized have injured their neighbor, they should be told to make reparation to God by works of penance.
On the contrary, Ambrose commenting on Rom. 11:29: "The gifts and the calling of God are without repentance," says: "The grace of God requires neither sighs nor groans in Baptism, nor indeed any work at all, but faith alone; and remits all, gratis."