Objection 2: Further, by a character a man is deputed to the Divine worship, as stated above (AA[3],4). But some pass from the worship of God to a contrary worship by apostasy from the faith. It seems, therefore, that such lose the sacramental character.
Objection 3: Further, when the end ceases, the means to the end should cease also: thus after the resurrection there will be no marriage, because begetting will cease, which is the purpose of marriage. Now the exterior worship to which a character is ordained, will not endure in heaven, where there will be no shadows, but all will be truth without a veil. Therefore the sacramental character does not last in the soul for ever: and consequently it can be blotted out.
On the contrary, Augustine says (Contra Parmen. ii): "The Christian sacraments are not less lasting than the bodily mark" of military service. But the character of military service is not repeated, but is "recognized and approved" in the man who obtains the emperor's forgiveness after offending him. Therefore neither can the sacramental character be blotted out.
I answer that, As stated above (A[3]), in a sacramental character Christ's faithful have a share in His Priesthood; in the sense that as Christ has the full power of a spiritual priesthood, so His faithful are likened to Him by sharing a certain spiritual power with regard to the sacraments and to things pertaining to the Divine worship. For this reason it is unbecoming that Christ should have a character: but His Priesthood is compared to a character, as that which is complete and perfect is compared to some participation of itself. Now Christ's Priesthood is eternal, according to Ps. 109:4 : "Thou art a priest for ever, according to the order of Melchisedech." Consequently, every sanctification wrought by His Priesthood, is perpetual, enduring as long as the thing sanctified endures. This is clear even in inanimate things; for the consecration of a church or an altar lasts for ever unless they be destroyed. Since, therefore, the subject of a character is the soul as to its intellective part, where faith resides, as stated above (A[4], ad 3); it is clear that, the intellect being perpetual and incorruptible, a character cannot be blotted out from the soul.
Reply to Objection 1: Both grace and character are in the soul, but in different ways. For grace is in the soul, as a form having complete existence therein: whereas a character is in the soul, as an instrumental power, as stated above (A[2]). Now a complete form is in its subject according to the condition of the subject. And since the soul as long as it is a wayfarer is changeable in respect of the free-will, it results that grace is in the soul in a changeable manner. But an instrumental power follows rather the condition of the principal agent: and consequently a character exists in the soul in an indelible manner, not from any perfection of its own, but from the perfection of Christ's Priesthood, from which the character flows like an instrumental power.
Reply to Objection 2: As Augustine says (Contra Parmen. ii), "even apostates are not deprived of their baptism, for when they repent and return to the fold they do not receive it again; whence we conclude that it cannot be lost." The reason of this is that a character is an instrumental power, as stated above (ad 1), and the nature of an instrument as such is to be moved by another, but not to move itself; this belongs to the will. Consequently, however much the will be moved in the contrary direction, the character is not removed, by reason of the immobility of the principal mover.
Reply to Objection 3: Although external worship does not last after this life, yet its end remains. Consequently, after this life the character remains, both in the good as adding to their glory, and in the wicked as increasing their shame: just as the character of the military service remains in the soldiers after the victory, as the boast of the conquerors, and the disgrace of the conquered.
Whether a character is imprinted by each sacrament of the New Law?
Objection 1: It seems that a character is imprinted by all the sacraments of the New Law: because each sacrament of the New Law makes man a participator in Christ's Priesthood. But the sacramental character is nothing but a participation in Christ's Priesthood, as already stated (AA[3],5). Therefore it seems that a character is imprinted by each sacrament of the New Law.
Objection 2: Further, a character may be compared to the soul in which it is, as a consecration to that which is consecrated. But by each sacrament of the New Law man becomes the recipient of sanctifying grace, as stated above (Q[62], A[1]). Therefore it seems that a character is imprinted by each sacrament of the New Law.
Objection 3: Further, a character is both a reality and a sacrament. But in each sacrament of the New Law, there is something which is only a reality, and something which is only a sacrament, and something which is both reality and sacrament. Therefore a character is imprinted by each sacrament of the New Law.
On the contrary, Those sacraments in which a character is imprinted, are not reiterated, because a character is indelible, as stated above (A[5]): whereas some sacraments are reiterated, for instance, penance and matrimony. Therefore not all the sacraments imprint a character.
I answer that, As stated above (Q[62], AA[1],5), the sacraments of the New Law are ordained for a twofold purpose, namely, as a remedy for sin, and for the Divine worship. Now all the sacraments, from the fact that they confer grace, have this in common, that they afford a remedy against sin: whereas not all the sacraments are directly ordained to the Divine worship. Thus it is clear that penance, whereby man is delivered from sin, does not afford man any advance in the Divine worship, but restores him to his former state.
Now a sacrament may belong to the Divine worship in three ways: first in regard to the thing done; secondly, in regard to the agent; thirdly, in regard to the recipient. In regard to the thing done, the Eucharist belongs to the Divine worship, for the Divine worship consists principally therein, so far as it is the sacrifice of the Church. And by this same sacrament a character is not imprinted on man; because it does not ordain man to any further sacramental action or benefit received, since rather is it "the end and consummation of all the sacraments," as Dionysius says (Eccl. Hier. iii). But it contains within itself Christ, in Whom there is not the character, but the very plenitude of the Priesthood.
But it is the sacrament of order that pertains to the sacramental agents: for it is by this sacrament that men are deputed to confer sacraments on others: while the sacrament of Baptism pertains to the recipients, since it confers on man the power to receive the other sacraments of the Church; whence it is called the "door of the sacraments." In a way Confirmation also is ordained for the same purpose, as we shall explain in its proper place (Q[65], A[3]). Consequently, these three sacraments imprint a character, namely, Baptism, Confirmation, and order.
Reply to Objection 1: Every sacrament makes man of the a participator in Christ's Priesthood, from the fact that it confers on him some effect thereof. But every sacrament does not depute a man to do or receive something pertaining to the worship of the priesthood of Christ: while it is just this that is required for a sacrament to imprint a character.
Reply to Objection 2: Man is sanctified by each of the sacraments, since sanctity means immunity from sin, which is the effect of grace. But in a special way some sacraments, which imprint a character, bestow on man a certain consecration, thus deputing him to the Divine worship: just as inanimate things are said to be consecrated forasmuch as they are deputed to Divine worship.
Reply to Objection 3: Although a character is a reality and a sacrament, it does not follow that whatever is a reality and a sacrament, is also a character. With regard to the other sacraments we shall explain further on what is the reality and what is the sacrament.