Jesus answered them, "Do not murmur among yourselves.
No one can come to me unless the Father who sent me draws him; and I will raise him up at the last day.
It is written in the prophets, 'And they shall all be taught by God.' Every one who has heard and learned from the Father comes to me.
Not that any one has seen the Father except him who is from God; he has seen the Father.
Truly, truly, I say to you, he who believes has eternal life.
I am the bread of life.
Your fathers ate the manna in the wilderness, and they died.
This is the bread which comes down from heaven, that a man may eat of it and not die.
I am the living bread which came down from heaven; if any one eats of this bread, he will live for ever; and the bread which I shall give for the life of the world is my flesh."
The Jews then disputed among themselves, saying, "How can this man give us his flesh to eat?"
So Jesus said to them, "Truly, truly, I say to you, unless you eat the flesh of the Son of man and drink his blood, you have no life in you;
he who eats my flesh and drinks my blood has eternal life, and I will raise him up at the last day.
For my flesh is food indeed, and my blood is drink indeed.
He who eats my flesh and drinks my blood abides in me, and I in him.
As the living Father sent me, and I live because of the Father, so he who eats me will live because of me.
This is the bread which came down from heaven, not such as the fathers ate and died; he who eats this bread will live for ever."
This he said in the synagogue, as he taught at Caper'na-um.
Many of his disciples, when they heard it, said, "This is a hard saying; who can listen to it?"
But Jesus, knowing in himself that his disciples murmured at it, said to them, "Do you take offense at this?
Then what if you were to see the Son of man ascending where he was before?
It is the spirit that gives life, the flesh is of no avail; the words that I have spoken to you are spirit and life.