... The Apostles proclaimed that they were giving the Body and Blood of the Savior at His express command... St. Paul wrote (eight years after St. Matthew wrote his Gospel) a letter to the Christian converts at Corinth: 1 Cor 10: 16, "The chalice of benediction, which we bless, is it not the communion of the blood of Christ? And the bread, which we break, is it not the partaking of the body of the Lord?" 1 Cor 11: 23-29, "For I have received of the Lord that which also I delivered unto you, that the Lord Jesus, the same night in which he was betrayed, took bread, and giving thanks, broke, and said: Take ye, and eat: this is my body, which shall be delivered for you: this do ye, as often as you shall drink, for the commemoration of me. For as often as you shall eat this bread, and drink the chalice, you shall show the death of the Lord, until He come. Therefore whosoever shall eat this bread, or drink the chalice of the Lord unworthily, shall be guilty of the body and of the blood of the Lord... For he that eateth and drinketh unworthily, eateth and drinketh judgment to himself, not discerning the body of the Lord." Here then is fully stated the doctrine of the Apostles and the faith of the Infant Church in the Real Presence of Christ in the Holy Eucharist. Notice the words Guilty of the Body and of the Blood–how could a person be guilty, if he had merely eaten a little bread and drunk a little wine, as a picture or representation or reminder of the Last Supper? No one is guilty of homicide if he merely does violence to the picture or statue of a man without touching the man in person. St. Paul's words are meaningless without the dogma of the Real Presence.

Q. A. Eucharist: Quizzes To A Street Preacher
Fr. Chas. M. Carty & Rev. Dr. L. Rumble, M.S.C.