Realcatholicgk;4728348:
no where in the history of the church do we ever see any ECFs using John 6 to describe communion.
Whoever eats my flesh and drinks my blood has eternal life, and I will raise him on the last day. (John 6:54)
"It is good and beneficial to communicate every day, and to partake of the holy body and blood of Christ. For He distinctly says, ‘He that eateth my flesh and drinketh my blood hath eternal life.’ And who doubts that to share frequently in life, is the same thing as to have manifold life. I, indeed, communicate four times a week, on the Lord’s day, on Wednesday, on Friday, and on the Sabbath, and on the other days if there is a commemoration of any Saint.” Basil, To Patrician Caesaria, Epistle 93 (A.D. 372).
For my flesh is true food, and my blood is true drink. Whoever eats my flesh and drinks my blood remains in me and I in him. (John 6:55-56)
“For as to what we say concerning the reality of Christ’s nature within us, unless we have been taught by Him, our words are foolish and impious. For He says Himself, My flesh is meat indeed, and My blood is drink indeed. He that eateth My flesh and drinketh My blood abideth in Me, and I in him. As to the verity of the flesh and blood there is no room left for doubt. For now both from the declaration of the Lord Himself and our own faith, it is verily flesh and verily blood. And these when eaten and drunk, bring it to pass that both we are in Christ and Christ in us. Is not this true? Yet they who affirm that Christ Jesus is not truly God are welcome to find it false. He therefore Himself is in us through the flesh and we in Him, whilst together with Him our own selves are in God.” Hilary of Poitiers, On the Trinity, 8:14 (inter A.D. 356-359).
"Then He added: ‘For My Flesh is meat indeed, and My Blood is drink [indeed].’ Thou hearest Him speak of His Flesh and of His Blood, thou perceivest the sacred pledges, [conveying to us the merits and power] of the Lord’s death, and thou dishonourest His Godhead. Hear His own words: ‘A spirit hath not flesh and bones.’ Now we, as often as we receive the Sacramental Elements, which by the mysterious efficacy of holy prayer are transformed into the Flesh and the Blood, “do show the Lord’s Death.’” Ambrose, On the Christian Faith, 4, 10:125 (A.D. 380).
Jesus said to them, "Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you. (John 6:53)
"Dearly-beloved, utter this confession with all your heart and reject the wicked lies of heretics, that your fasting and almsgiving may not be polluted by any contagion with error: for then is our offering of the sacrifice clean and oar gifts of mercy holy, when those who perform them understand that which they do. For when the Lord says, “unless ye have eaten the flesh of the Son of Man, and drunk His blood, ye will not have life in you,’ you ought so to be partakers at the Holy Table, as to have no doubt whatever concerning the reality of Christ’s Body and Blood. For that is taken in the mouth which is believed in Faith, and it is vain for them to respond Amend who dispute that which is taken.” Pope Leo the Great, Sermon, 91:3 (ante A.D. 461).