Theorema de sacramentorum nucleo

Indeed, the Lord Himself explained the mystery of this Sacrament. John 4:14: Whoever drinks of the water that I shall give him will never thirst: but the water that I shall give him will become in him a fountain of water springing up into eternal life.

xxiiii. Baptism.

We approach now to the Sacraments of the new Testament: one of which is of our Regeneration, the other of our spiritual Nourishment.

11. It is asked, therefore, Whether we become participants of Christ Jesus Himself in Baptism in such a way that He can truly be called the nucleus of Baptism?

Response. If in Baptism, having been ingrafted, we coalesce with Him through the conformation of His death and resurrection. Rom. 6:3-5. If we put Him on. Gal. 3:27. If we were all baptized into one body through one Spirit. 1 Cor. 12:13. It is certain that the nucleus and marrow of Baptism is also Jesus Christ: without whom there would be nothing holy, nothing salutary in Baptism.

xxiiii. Eucharist.

12. Can and should Jesus Christ be called the nucleus and the most precious thing of all in the Lord's Supper?

Response. Most certainly. For the cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ? Because we, being many, are one bread and one body: for we all are partakers of the one bread. 1 Cor. 10:16-17.

Here pertain those things which were delivered to memory regarding the institution of this Sacrament by Matthew, Mark, Luke, and Paul: and regarding the Reality of this Sacrament, namely regarding the Bread of life, which is the flesh of Christ delivered for the life of the world, John chapter 6.

Furthermore, how the faithful eat the true flesh of Christ, and drink His blood, not with the mouth of the body, but by faith, and spiritually, according to the holy Scriptures, Augustine explained with these words:

He who eats inwardly, not outwardly: he who eats with the heart, not he who presses with the tooth. Likewise: Why do you prepare teeth and stomach? Believe, and you have eaten. Tract 25 and 26 on John. These things fight diametrically with the Berengarian palinode, which nevertheless some approve.