Of Those on Whom the Power of the Keys Can Be Exercised
Of Those on Whom the Power of the Keys Can Be Exercised — St. Thomas Aquinas asks: Whether a priest can use the key which he has, on any man?; Whether a priest can always absolve his subject?; Whether a man can use the keys with regard to his superior?.
We must now consider those on whom the power of the keys can be exercised. Under this head there are three points of inquiry:
Article 1: Whether a priest can use the key which he has, on any man?
It is written in the Appendix of Gratian: "It is not lawful for every priest to loose or bind another priest's parishioner." Therefore a priest cannot absolve everybody.
Further, judgment in spiritual matters should be better regulated than in temporal matters. But in temporal matters a judge cannot judge everybody. Therefore, since the use of the keys is a kind of judgment, it is not within the competency of a priest to use his key with regard to everyone.
That which has to do with singular matters is not equally in the power of all. Thus, even as besides the general principles of medicine, it is necessary to have physicians, who adapt those general principles to individual patients or diseases, according to their various requirements, so in every kingdom, besides that one who proclaims the universal precepts of law, there is need for others to adapt those precepts to individual cases, according as each case demands. For this reason, in the heavenly hierarchy also, under the Powers who rule indiscriminately, a place is given to the Principalities, who are appointed to individual kingdoms, and to the Angels who are given charge over individual men, as we have explained above (). Consequently there should be a like order of authority in the Church Militant, so that an indiscriminate authority over all should be vested in one individual, and that there should be others under him, having distinct authority over various people. Now the use of the keys implies a certain power to exercise authority, whereby the one on whom the keys are used, becomes the proper matter of that act. Therefore he that has power over all indiscriminately, can use the keys on all, whereas those who have received authority over distinct persons, cannot use the keys on everyone, but only on those over whom they are appointed, except in cases of necessity, when the sacraments should be refused to no one.
Article 2: Whether a priest can always absolve his subject?
Whoever has charge of the principal has charge of the accessory. Now priests are charged with the dispensation of the Eucharist to their subjects, to which sacrament the absolution of sins is subordinate [*Cf.[4879] ]. Therefore, as far as the power of the keys is concerned, a priest can absolve his subject from any sins whatever.
Further, grace, however small, removes all sin. But a priest dispenses sacraments whereby grace is given. Therefore, as far as the power of the keys is concerned, he can absolve from all sins.
The power of order, considered in itself, extends to the remission of all sins. But since, as stated above, the use of this power requires jurisdiction which inferiors derive from their superiors, it follows that the superior can reserve certain matters to himself, the judgment of which he does not commit to his inferior; otherwise any simple priest who has jurisdiction can absolve from any sin. Now there are five cases in which a simple priest must refer his penitent to his superior. The first is when a public penance has to be imposed, because in that case the bishop is the proper minister of the sacrament. The second is the case of those who are excommunicated when the inferior priest cannot absolve a penitent through the latter being excommunicated by his superior. The third case is when he finds that an irregularity has been contracted, for the dispensation of which he has to have recourse to his superior. The fourth is the case of arson. The fifth is when it is the custom in a diocese for the more heinous crimes to be reserved to the bishop, in order to inspire fear, because custom in these cases either gives the power or takes it away.
Article 3: Whether a man can use the keys with regard to his superior?
The higher prelate is also "compassed with infirmity," and may happen to sin. Now the power of the keys is the remedy for sin. Therefore, since he cannot use the key on himself, for he cannot be both judge and accused at the same time, it seems that an inferior can use the power of the keys on him.
Further, absolution which is given through the power of the keys, is ordained to the reception of the Eucharist. But an inferior can give Communion to his superior, if the latter asks him to. Therefore he can use the power of the keys on him if he submit to him.
The power of the keys, considered in itself, is applicable to all, as stated above (): and that a priest is unable to use the keys on some particular person is due to his power being limited to certain individuals. Therefore he who limited his power can extend it to whom he wills, so that he can give him power over himself, although he cannot use the power of the keys on himself, because this power requires to be exercised on a subject, and therefore on someone else, for no man can be subject to himself.