Thomas Aquinas - Summa Theologica, Part III (Tertia Pars)

Obj. 2: Further, the Apostle says (Heb. 10:1-3) that the victims of the Old Testament could not "make" (the comers thereunto) "perfect: for then they would have ceased to be offered; because the worshipers once cleansed should have no conscience of sin any longer; but in them there is made a commemoration of sins every year." But in like manner under the priesthood of Christ a commemoration of sins is made in the words: "Forgive us our trespasses" (Matt. 6:12). Moreover, the Sacrifice is offered continuously in the Church; wherefore again we say: "Give us this day our daily bread." Therefore sins are not expiated by the priesthood of Christ.

Obj. 3: Further, in the sin-offerings of the Old Law, a he-goat was mostly offered for the sin of a prince, a she-goat for the sin of some private individual, a calf for the sin of a priest, as we gather from Lev. 4:3, 23, 28. But Christ is compared to none of these, but to the lamb, according to Jer. 11:19: "I was as a meek lamb, that is carried to be a victim." Therefore it seems that His priesthood does not expiate sins.

On the contrary, The Apostle says (Heb. 9:14): "The blood of Christ, Who by the Holy Ghost offered Himself unspotted unto God, shall cleanse our conscience from dead works, to serve the living God." But dead works denote sins. Therefore the priesthood of Christ has the power to cleanse from sins.

I answer that, Two things are required for the perfect cleansing from sins, corresponding to the two things comprised in sin—namely, the stain of sin and the debt of punishment. The stain of sin is, indeed, blotted out by grace, by which the sinner's heart is turned to God: whereas the debt of punishment is entirely removed by the satisfaction that man offers to God. Now the priesthood of Christ produces both these effects. For by its virtue grace is given to us, by which our hearts are turned to God, according to Rom. 3:24, 25: "Being justified freely by His grace, through the redemption that is in Christ Jesus, Whom God hath proposed to be a propitiation, through faith in His blood." Moreover, He satisfied for us fully, inasmuch as "He hath borne our infirmities and carried our sorrows" (Isa. 53:4). Wherefore it is clear that the priesthood of Christ has full power to expiate sins.

Reply Obj. 1: Although Christ was a priest, not as God, but as man, yet one and the same was both priest and God. Wherefore in the Council of Ephesus [*Part III, ch. i, anath. 10] we read: "If anyone say that the very Word of God did not become our High-Priest and Apostle, when He became flesh and a man like us, but altogether another one, the man born of a woman, let him be anathema." Hence in so far as His human nature operated by virtue of the Divine, that sacrifice was most efficacious for the blotting out of sins. For this reason Augustine says (De Trin. iv, 14): "So that, since four things are to be observed in every sacrifice—to whom it is offered, by whom it is offered, what is offered, for whom it is offered; the same one true Mediator reconciling us to God by the sacrifice of peace, was one with Him to Whom it was offered, united in Himself those for whom He offered it, at the same time offered it Himself, and was Himself that which He offered."

Reply Obj. 2: Sins are commemorated in the New Law, not on account of the inefficacy of the priesthood of Christ, as though sins were not sufficiently expiated by Him: but in regard to those who either are not willing to be participators in His sacrifice, such as unbelievers, for whose sins we pray that they be converted; or who, after taking part in this sacrifice, fall away from it by whatsoever kind of sin. The Sacrifice which is offered every day in the Church is not distinct from that which Christ Himself offered, but is a commemoration thereof. Wherefore Augustine says (De Civ. De. x, 20): "Christ Himself both is the priest who offers it and the victim: the sacred token of which He wished to be the daily Sacrifice of the Church."

Reply Obj. 3: As Origen says (Sup. Joan. i, 29), though various animals were offered up under the Old Law, yet the daily sacrifice, which was offered up morning and evening, was a lamb, as appears from Num. 38:3, 4. By which it was signified that the offering up of the true lamb, i.e. Christ, was the culminating sacrifice of all. Hence (John 1:29) it is said: "Behold the Lamb of God, behold Him Who taketh away the sins [Vulg.: 'sin'] of the world." _______________________

FOURTH ARTICLE [III, Q. 22, Art. 4]

Whether the Effect of the Priesthood of Christ Pertained Not Only to

Others, but Also to Himself?

Objection 1: It would seem that the effect of the priesthood of Christ pertained not only to others, but also to Himself. For it belongs to the priest's office to pray for the people, according to 2 Macc. 1:23: "The priests made prayer while the sacrifice was consuming." Now Christ prayed not only for others, but also for Himself, as we have said above (Q. 21, A. 3), and as expressly stated (Heb. 5:7): "In the days of His flesh, with a strong cry and tears He offered [Vulg.: 'offering'] up prayers and supplications to Him that was able to save Him from death." Therefore the priesthood of Christ had an effect not only in others, but also in Himself.

Obj. 2: Further, in His passion Christ offered Himself as a sacrifice. But by His passion He merited, not only for others, but also for Himself, as stated above (Q. 19, AA. 3, 4). Therefore the priesthood of Christ had an effect not only in others, but also in Himself.

Obj. 3: Further, the priesthood of the Old Law was a figure of the priesthood of Christ. But the priest of the Old Law offered sacrifice not only for others, but also for himself: for it is written (Lev. 16:17) that "the high-priest goeth into the sanctuary to pray for himself and his house, and for the whole congregation of Israel." Therefore the priesthood of Christ also had an effect not merely in others, but also in Himself.

On the contrary, We read in the acts of the Council of Ephesus [*Part III, ch. i, anath. 10]: "If anyone say that Christ offered sacrifice for Himself, and not rather for us alone (for He Who knew not sin needed no sacrifice), let him be anathema." But the priest's office consists principally in offering sacrifice. Therefore the priesthood of Christ had no effect in Himself.

I answer that, As stated above (A. 1), a priest is set between God and man. Now he needs someone between himself and God, who of himself cannot approach to God; and such a one is subject to the priesthood by sharing in the effect thereof. But this cannot be said of Christ; for the Apostle says (Heb. 7:25): "Coming of Himself to God, always living to make intercession for us [Vulg.: 'He is able to save for ever them that come to God by Him; always living,' etc.]." And therefore it is not fitting for Christ to be the recipient of the effect of His priesthood, but rather to communicate it to others. For the influence of the first agent in every genus is such that it receives nothing in that genus: thus the sun gives but does not receive light; fire gives but does not receive heat. Now Christ is the fountain-head of the entire priesthood: for the priest of the Old Law was a figure of Him; while the priest of the New Law works in His person, according to 2 Cor. 2:10: "For what I have pardoned, if I have pardoned anything, for your sakes have I done it in the person of Christ." Therefore it is not fitting that Christ should receive the effect of His priesthood.

Reply Obj. 1: Although prayer is befitting to priests, it is not their proper office, for it is befitting to everyone to pray both for himself and for others, according to James 5:16: "Pray for one another that you may be saved." And so we may say that the prayer by which Christ prayed for Himself was not an action of His priesthood. But this answer seems to be precluded by the Apostle, who, after saying (Heb. 5:6), "Thou art a priest for ever according to the order of Melchisedech," adds, "Who in the days of His flesh offering up payers," etc., as quoted above (Obj. 1): so that it seems that the prayer which Christ offered pertained to His priesthood. We must therefore say that other priests partake in the effect of their priesthood, not as priests, but as sinners, as we shall state farther on (ad 3). But Christ had, simply speaking, no sin; though He had the "likeness of sin in the flesh [Vulg.: 'sinful flesh']," as is written Rom. 8:3. And, consequently, we must not say simply that He partook of the effect of His priesthood but with this qualification— in regard to the passibility of the flesh. Wherefore he adds pointedly, "that was able to save Him from death."