Objection 1: It seems that it does not belong to man alone to eat this sacrament spiritually, but likewise to angels. Because on Ps. 77:25 : "Man ate the bread of angels," the gloss says: "that is, the body of Christ, Who i's truly the food of angels." But it would not be so unless the angels were to eat Christ spiritually. Therefore the angels eat Christ spiritually.
Objection 2: Further, Augustine (Tract. xxvi in Joan.) says: By "this meat and drink, He would have us to understand the fellowship of His body and members, which is the Church in His predestinated ones." But not only men, but also the holy angels belong to that fellowship. Therefore the holy angels eat of it spiritually.
Objection 3: Further, Augustine in his book De Verbis Domini (Serm. cxlii) says: "Christ is to be eaten spiritually, as He Himself declares: 'He that eateth My flesh and drinketh My blood, abideth in Me, and I in him.'" But this belongs not only to men, but also to the holy angels, in whom Christ dwells by charity, and they in Him. Consequently, it seems that to eat Christ spiritually is not for men only, but also for the angels.
On the contrary, Augustine (Tract. xxvi in Joan.) says: "Eat the bread" of the altar "spiritually; take innocence to the altar." But angels do not approach the altar as for the purpose of taking something therefrom. Therefore the angels do not eat spiritually.
I answer that, Christ Himself is contained in this sacrament, not under His proper species, but under the sacramental species. Consequently there are two ways of eating spiritually. First, as Christ Himself exists under His proper species, and in this way the angels eat Christ spiritually inasmuch as they are united with Him in the enjoyment of perfect charity, and in clear vision (and this is the bread we hope for in heaven), and not by faith, as we are united with Him here.
In another way one may eat Christ spiritually, as He is under the sacramental species, inasmuch as a man believes in Christ, while desiring to receive this sacrament; and this is not merely to eat Christ spiritually, but likewise to eat this sacrament; which does not fall to the lot of the angels. And therefore although the angels feed on Christ spiritually, yet it does not belong to them to eat this sacrament spiritually.
Reply to Objection 1: The receiving of Christ under this sacrament is ordained to the enjoyment of heaven, as to its end, in the same way as the angels enjoy it; and since the means are gauged by the end, hence it is that such eating of Christ whereby we receive Him under this sacrament, is, as it were, derived from that eating whereby the angels enjoy Christ in heaven. Consequently, man is said to eat the "bread of angels," because it belongs to the angels to do so firstly and principally, since they enjoy Him in his proper species; and secondly it belongs to men, who receive Christ under this sacrament.
Reply to Objection 2: Both men and angels belong to the fellowship of His mystical body; men by faith, and angels by manifest vision. But the sacraments are proportioned to faith, through which the truth is seen "through a glass" and "in a dark manner." And therefore, properly speaking, it does not belong to angels, but to men, to eat this sacrament spiritually.
Reply to Objection 3: Christ dwells in men through faith, according to their present state, but He is in the blessed angels by manifest vision. Consequently the comparison does not hold, as stated above (ad 2).
Whether the just man alone may eat Christ sacramentally?
Objection 1: It seems that none but the just man may eat Christ sacramentally. For Augustine says in his book De Remedio Penitentiae (cf. Tract. in Joan. xxv, n. 12; xxvi, n. 1): "Why make ready tooth and belly? Believe, and thou hast eaten . . . For to believe in Him, this it is, to eat the living bread." But the sinner does not believe in Him; because he has not living faith, to which it belongs to believe "in God," as stated above in the SS, Q[2], A[2]; SS, Q[4], A[5]. Therefore the sinner cannot eat this sacrament, which is the living bread.
Objection 2: Further, this sacrament is specially called "the sacrament of charity," as stated above (Q[78], A[3], ad 6). But as unbelievers lack faith, so all sinners lack charity. Now unbelievers do not seem to be capable of eating this sacrament, since in the sacramental form it is called the "Mystery of Faith." Therefore, for like reason, the sinner cannot eat Christ's body sacramentally.
Objection 3: Further, the sinner is more abominable before God than the irrational creature: for it is said of the sinner ( Ps. 48:21 ): "Man when he was in honor did not understand; he hath been compared to senseless beasts, and made like to them." But an irrational animal, such as a mouse or a dog, cannot receive this sacrament, just as it cannot receive the sacrament of Baptism. Therefore it seems that for the like reason neither may sinners eat this sacrament.
On the contrary, Augustine (Tract. xxvi in Joan.), commenting on the words, "that if any man eat of it he may not die," says: "Many receive from the altar, and by receiving die: whence the Apostle saith, 'eateth and drinketh judgment to himself.'" But only sinners die by receiving. Therefore sinners eat the body of Christ sacramentally, and not the just only.
I answer that, In the past, some have erred upon this point, saying that Christ's body is not received sacramentally by sinners; but that directly the body is touched by the lips of sinners, it ceases to be under the sacramental species.
But this is erroneous; because it detracts from the truth of this sacrament, to which truth it belongs that so long as the species last, Christ's body does not cease to be under them, as stated above (Q[76], A[6], ad 3; Q[77], A[8]). But the species last so long as the substance of the bread would remain, if it were there, as was stated above (Q[77], A[4]). Now it is clear that the substance of bread taken by a sinner does not at once cease to be, but it continues until digested by natural heat: hence Christ's body remains just as long under the sacramental species when taken by sinners. Hence it must be said that the sinner, and not merely the just, can eat Christ's body.
Reply to Objection 1: Such words and similar expressions are to be understood of spiritual eating, which does not belong to sinners. Consequently, it is from such expressions being misunderstood that the above error seems to have arisen, through ignorance of the distinction between corporeal and spiritual eating.
Reply to Objection 2: Should even an unbeliever receive the sacramental species, he would receive Christ's body under the sacrament: hence he would eat Christ sacramentally, if the word "sacramentally" qualify the verb on the part of the thing eaten. But if it qualify the verb on the part of the one eating, then, properly speaking, he does not eat sacramentally, because he uses what he takes, not as a sacrament, but as simple food. Unless perchance the unbeliever were to intend to receive what the Church bestows; without having proper faith regarding the other articles, or regarding this sacrament.
Reply to Objection 3: Even though a mouse or a dog were to eat the consecrated host, the substance of Christ's body would not cease to be under the species, so long as those species remain, and that is, so long as the substance of bread would have remained; just as if it were to be cast into the mire. Nor does this turn to any indignity regarding Christ's body, since He willed to be crucified by sinners without detracting from His dignity; especially since the mouse or dog does not touch Christ's body in its proper species, but only as to its sacramental species. Some, however, have said that Christ's body would cease to be there, directly it were touched by a mouse or a dog; but this again detracts from the truth of the sacrament, as stated above. None the less it must not be said that the irrational animal eats the body of Christ sacramentally; since it is incapable of using it as a sacrament. Hence it eats Christ's body "accidentally," and not sacramentally, just as if anyone not knowing a host to be consecrated were to consume it. And since no genus is divided by an accidental difference, therefore this manner of eating Christ's body is not set down as a third way besides sacramental and spiritual eating.
Whether the sinner sins in receiving Christ's body sacramentally?
Objection 1: It seems that the sinner does not sin in receiving Christ's body sacramentally, because Christ has no greater dignity under the sacramental species than under His own. But sinners did not sin when they touched Christ's body under its proper species; nay, rather they obtained forgiveness of their sins, as we read in Lk. 7 of the woman who was a sinner; while it is written ( Mat. 14:36 ) that "as many as touched the hem of His garment were healed." Therefore, they do not sin, but rather obtain salvation, by receiving the body of Christ.
Objection 2: Further, this sacrament, like the others, is a spiritual medicine. But medicine is given to the sick for their recovery, according to Mat. 9:12 : "They that are in health need not a physician." Now they that are spiritually sick or infirm are sinners. Therefore this sacrament can be received by them without sin.
Objection 3: Further, this sacrament is one of our greatest gifts, since it contains Christ. But according to Augustine (De Lib. Arb. ii), the greatest gifts are those "which no one can abuse." Now no one sins except by abusing something. Therefore no sinner sins by receiving this sacrament.
Objection 4: Further, as this sacrament is perceived by taste and touch, so also is it by sight. Consequently, if the sinner sins by receiving the sacrament, it seems that he would sin by beholding it, which is manifestly untrue, since the Church exposes this sacrament to be seen and adored by all. Therefore the sinner does not sin by eating this sacrament.
Objection 5: Further, it happens sometimes that the sinner is unconscious of his sin. Yet such a one does not seem to sin by receiving the body of Christ, for according to this all who receive it would sin, as exposing themselves to danger, since the Apostle says ( 1 Cor. 4:4 ): "I am not conscious to myself of anything, yet I am not hereby justified." Therefore, the sinner, if he receive this sacrament, does not appear to be guilty of sin.