John 6:50-53

⁵⁰This is the bread that comes down out of Heaven, so that anyone may eat of it and not die.

⁵¹I am the living bread which came down out of Heaven. If anyone eats of this bread he will live forever. Actually, the bread that I will give is my flesh, which I will give on behalf of the life of the world.”

⁵²At that the Jews started quarrelling among themselves, saying, “How can this man give us his flesh to eat?!”

⁵³So Jesus said to them: “Most assuredly I say to you, unless you eat the flesh of the Son of the Man and drink His blood, you do not have Life within yourselves.