Mark 14:23

(ubi sup.) The wine of the Lord's cup is mixed with water, because we should remain in Christ and Christ in us. For on the testimony of John, the waters are the people, and it is not lawful for any one to offer either wine alone, or water alone, lest such an oblation should mean that the head may be severed from the members, and either that Christ could suffer without love for our redemption, and that we can be saved or be offered to the Father without His Passion. (Apoc. 17:15) It goes on: And they all drank of it.

(ubi sup.) Let there not be therefore a Judas at the table of the Lord; this sacrifice is spiritual food, for as bodily food, working on a belly filled with humours which are opposed to it, is hurtful, so this spiritual food if taken by one polluted with wickedness, rather brings him to perdition, not by its own nature, but through the fault of the recipient. Let therefore our mind be pure in all things, and our thought pure, for that sacrifice is pure. There follows: And he said unto them, This is my blood of the New Testament, which is shed for many.

(Mor. ii. 37) When His Passion was approaching, He is said to have taken bread and given thanks. He therefore gave thanks, who took upon Him the stripes of other men's wickedness; He who did nothing worthy of smiting, humbly gives a blessing in His Passion, to show us, what each should do when beaten for his own sins, since He Himself bore calmly the stripes due to the sin of others; furthermore to show us, what we who are the subjects of the Father should do under correction, when He who is His equal gave thanks under the lash.

But in a mystical sense, the Lord transfigures into bread His body, which is the present Church, which is received in faith, is blessed in its number, is broken in its sufferings, is given in its examples, is taken in its doctrines; and He forms His Blood (formans sanguinem suum ap. Pseudo-Hier.) in the chalice of water and wine mingled together, that by one we may be purged from our sins, by the other redeemed from their punishment. For by the blood of the lamb our houses are preserved from the smiting of the Angel, and our enemies perish in the waters of the Red sea, which are the sacraments of the Church of Christ. Wherefore it goes on: And he took the cup, and when he had given thanks, he gave it to them. For we are saved by the grace of the Lord, not by our own deserts. Happy intoxication, saving fulness, which the more we drink gives the greater sobriety of mind! Judas therefore drinks and is not satisfied, nor can he quench the thirst of the everlasting fire, because he unworthily partakes of the mysteries of Christ. There are some in the Church whom the sacrifice does not cleanse, but their foolish thought draws them on to sin, for they have plunged themselves in the stinking slough of cruelty.