Jesus answered them, "This is the work of God, that you believe in him whom he has sent."
So they said to him, "What sign are you going to give us then, so that we may see it and believe you? What work are you performing?
Our ancestors ate the manna in the wilderness; as it is written, "He gave them bread from heaven to eat.' "
Then Jesus said to them, "Very truly, I tell you, it was not Moses who gave you the bread from heaven, but it is my Father who gives you the true bread from heaven.
For the bread of God is that which comes down from heaven and gives life to the world."
They said to him, "Sir, give us this bread always."
Jesus said to them, "I am the bread of life. Whoever comes to me will never be hungry, and whoever believes in me will never be thirsty.
But I said to you that you have seen me and yet do not believe.
Everything that the Father gives me will come to me, and anyone who comes to me I will never drive away;
for I have come down from heaven, not to do my own will, but the will of him who sent me.
And this is the will of him who sent me, that I should lose nothing of all that he has given me, but raise it up on the last day.