51I am the living bread that has come down from heaven. If anyone eats of this bread, they will live for ever; and the bread that I will give is my flesh, which I will give for the life of the world.”
52They began disputing with one another, “How is it possible for this man to give us his flesh to eat?”
53“In truth I tell you,” answered Jesus, “unless you eat the flesh of the Son of Man, and drink his blood, you have not life within you.
54Everyone who takes my flesh for their food, and drinks my blood, has eternal life; and I will raise them up at the Last day.
John 6
John 6:51-54