John 6:51-54

⁵¹I am the living bread which came down from heaven.

⁵²If any man eat of this bread, he shall live for ever; and the bread that I will give, is my flesh, for the life of the world.

⁵³The Jews therefore strove among themselves, saying: How can this man give us his flesh to eat?

⁵⁴Then Jesus said to them: Amen, amen I say unto you: Except you eat the flesh of the Son of man, and drink his blood, you shall not have life in you.