John 6:53

“Then Jesus said unto them, etc.] The Jews, who were litigating this point among themselves: verily, verily, I say unto you; or you may assure yourselves of the truth of what follows, except ye eat the flesh of the son of man, and drink his blood, ye have no life in you: by “the son of man”, Christ means himself; under which title he often speaks of himself; because it was a title of the Messiah under the Old Testament; and was expressive of the truth of his human nature, though as attended with weakness and infirmities. The “flesh” and “blood” of Christ do not design those distinct parts of his body; much less as separate from each other; nor the whole body of Christ, but his whole human…”

“Except ye eat the flesh . . . and drink the blood . . . no life, &c.--The harshest word He had yet uttered in their ears. They asked how it was possible to eat His flesh. He answers, with great solemnity, "It is indispensable." Yet even here a thoughtful hearer might find something to temper the harshness. He says they must not only "eat His flesh" but "drink His blood," which could not but suggest the idea of His death--implied in the separation of one's flesh from his blood. And as He had already hinted that it was to be something very different from a natural death, saying, "My flesh I will give for the life of the world" (Joh 6:51), it must have been pretty plain to candid hearers that…”

“In these verses Jesus repeats what he had in substance said before. Except ye eat the flesh ... - He did not mean that this should be understood literally, for it was never done, and it is absurd to suppose that it was intended to be so understood. Nothing can possibly be more absurd than to suppose that when he instituted the Supper, and gave the bread and wine to his disciples, they literally ate his flesh and drank his blood. Who can believe this? There he stood, a living man - his body yet alive, his blood flowing in his veins; and how can it be believed that this body was eaten and this blood drunk? Yet this absurdity must be held by those who hold that the bread and wine at the…”

“Unless ye eat the flesh of the Son of man - Spiritually: unless ye draw continual virtue from him by faith. Eating his flesh is only another expression for believing. John 6:55”

“6:53-58 eat the flesh . . . drink his blood: Jesus answered the question the people asked (6:52). His words hinted at the Lord’s Supper yet to come (see Luke 22:19). Since “flesh and blood” was a Jewish idiom for the whole person, Jesus might have been calling people to consume him fully by completely believing in him. Some Christian traditions see the bread as Christ’s literal flesh broken for us and the wine as his literal blood poured out for us. Others take the meaning in purely spiritual terms. Either way, receiving communion means no less than embracing Jesus’ life-giving sacrifice.”

“Verily: Joh 6:26, Joh 6:47, Joh 3:3; Mat 5:18 Except: Joh 3:3, Joh 3:5, Joh 13:8, Joh 15:4; Mat 18:3; Luk 13:3, Luk 13:5 eat: Joh 6:55, Joh 3:36; Mat 26:26-28; Jo1 5:12; Rev 2:7, Rev 2:17 John 6:54”