1Cor 11:29

“"For he that eateth and drinketh unworthily, eateth and drinketh judgment to himself." What sayest thou, tell me? Is this Table which is the cause of so many blessings and teeming with life, become judgment? Not from its own nature, saith he, but from the will of him that approaches. For as His presence, which conveyed to us those great and unutterable blessings, condemned the more them that received it not: so also the Mysteries become provisions of greater punishment to such as partake unworthily. But why doth he eat judgment to himself? "Not discerning the Lord's body:" i.e., not searching, not bearing in mind, as he ought, the greatness of the things set before him; not estimating the weight of the gift. For if thou shouldest come to know accurately Who it is that lies before thee, and Who He is that gives Himself, and to whom, thou wilt need no other argument, but this is enough for thee to use all vigilance; unless thou shouldest be altogether fallen.”

“Not because of the nature of the Mysteries (for they are life-giving), but because of the unworthiness of the one who approaches, just as looking at the sun is harmful to diseased eyes. That is, without examining or thinking about the greatness of what is set before us. For if we were aware of what is set before us at a given time, we would not need another awakening: this alone would have awakened us to be vigilant.”

“In the species of bread and wine Christ is set before us as food, which whoever receives worthily, not only sacramentally, but also eating spiritually through faith and charity, is more fully incorporated into the mystical body of Christ and is in himself refreshed and purified; but whoever approaches unworthily eats and drinks judgment to himself, not discerning the most holy body of Christ. Since our capacity to receive Christ efficaciously is not in the flesh, but in the spirit, not in the belly, but in the mind: and the mind does not attain Christ except through knowledge and love, through faith and charity, such that faith illuminates unto meditation, and charity enkindles unto devotion: therefore, in order that one may approach worthily, it is necessary that one eat spiritually, so that through the meditation of faith one may chew, and through the devotion of love one may receive: through which one does not transform Christ into oneself, but rather one is transferred into His mystical body. On account of which it is manifestly gathered that he who approaches tepidly, without devotion, and without consideration eats and drinks judgment to himself, because he does insult to so great a Sacrament. And therefore the counsel is for those who feel themselves less clean in mind or in flesh, or even without devotion, that they defer until, prepared for the eating of the true Lamb, they approach clean, devout, and circumspect.”

“Then when he says, anyone who eats, he assigns the reason for the above remedy, saying: A previous examination is required, because anyone who eats and drinks unworthily eats and drinks judgment, i.e., condemnation, upon himself: "Those who have done evil will rise to the resurrection of judgment" (Jn. 5:29). Not discerning the body of the Lord, i.e., from the fact that he does not distinguish the body of the Lord from other things, receiving Him indiscriminately as other foods: "Anyone who approaches the holy things while he has an uncleanness, that person shall be cut off from my presence" (Lev 22:3). On the other hand it says in John (6:58): "He that eats me shall live because of me." The answer is that there are two ways of receiving this sacrament, namely, spiritually and sacramentally. Therefore, some receive sacramentally and spiritually, namely, those who receive this sacrament in such a way that they also share in the reality of the sacrament, namely, charity through which ecclesial unity exists. To such the Lord's words apply: "He that eats me will live because of me." But some receive only sacramentally, namely, those who receive this sacrament in such a way that they do not have the reality of the sacrament, i.e., charity. To these are applied the words spoken here: "He that eats and drinks unworthily eats and drinks judgment upon himself." Besides these two ways by which the sacrament is taken, there is a third way, by which one eats per accidens, namely, when it is taken not as a sacrament. This can happen in three ways: in one way, as when a believer receives the consecrated host, which he does not believe is consecrated: such a one has the habit of receiving this sacrament, but he does not use it actually as a sacrament. In another way, as when an unbeliever receives the consecrated host, but he has no faith about this sacrament: such a person does not have the habit of using this sacrament, but only the potentiality. In a third way, as when a mouse or other brute animal eats the sacred host: such animals do have even the potentiality to use this sacrament. Therefore, from the fact that those who receive this sacrament spiritually acquire life, some are drawn to receive this sacrament frequently. But from the fact that those who receive unworthily acquire judgment upon themselves, many are deterred and rarely receive. Both seem commendable, for we read in Lk (19:6): "Zacheaus rejoiced to receive the Lord into his house." In this his charity is commended. We also read in Lk (7:6) that the centurion said to Christ: "I am not worthy that you should enter under my roof." In this case his honor and reverence toward Christ is commended. But because of themselves love is preferred to fear, it seems more commendable to receive more frequently rather than more rarely. Yet because something more choiceworthy in itself can be less choiceworthy in regard to this or that person, each one should consider in himself which effect the frequent reception of this sacrament would have in him. For if someone feels that it helps him make progress to the fervor of his love of Christ and in his strength to resist sins, he ought to receive frequently. But if someone feels in himself less reverence for his sacrament by receiving it frequently, he should be advised to receive it rarely. Hence, even in the book On the Dogmas of the Church it says: "I neither praise nor condemn daily communion."”

“damnation--A mistranslation which has put a stumbling-block in the way of many in respect to communicating. The right translation is "judgment." The judgment is described (Co1 11:30-32) as temporal. not discerning--not duty judging: not distinguishing in judgment (so the Greek: the sin and its punishment thus being marked as corresponding) from common food, the sacramental pledges of the Lord's body. Most of the oldest manuscripts omit "Lord's" (see Co1 11:27). Omitting also "unworthily," with most of the oldest manuscripts, we must translate, "He that eateth and drinketh, eateth and drinketh judgment to himself, IF he discern not the body" (Heb 10:29). The Church is "the body of Christ" (Co1 12:27). The Lord's body is His literal body appreciated and discerned by the soul in the faithful receiving, and not present in the elements themselves.”