John 6:33, 35, 51, 53-56

For the bread of God is that which cometh down out of heaven, and giveth life unto the world.

Jesus said unto them, I am the bread of life: he that cometh to me shall not hunger, and he that believeth on me shall never thirst.

I am the living bread which came down out of heaven: if any man eat of this bread, he shall live for ever: yea and the bread which I will give is my flesh, for the life of the world.

Jesus therefore said unto them, Verily, verily, I say unto you, Except ye eat the flesh of the Son of man and drink his blood, ye have not life in yourselves. He that eateth my flesh and drinketh my blood hath eternal life; and I will raise him up at the last day. For 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.