John 6:35, 41-51 (NRSV)
35 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.
41 Then the Jews began to complain about him because he said, “I am the bread that came down from heaven.” 42 They were saying, “Is not this Jesus, the son of Joseph, whose father and mother we know? How can he now say, ‘I have come down from heaven’?” 43 Jesus answered them, “Do not complain among yourselves. 44 No one can come to me unless drawn by the Father who sent me; and I will raise that person up on the last day. 45 It is written in the prophets, ‘And they shall all be taught by God.’ Everyone who has heard and learned from the Father comes to me. 46 Not that anyone has seen the Father except the one who is from God; he has seen the Father. 47 Very truly, I tell you, whoever believes has eternal life. 48 I am the bread of life. 49 Your ancestors ate the manna in the wilderness, and they died. 50 This is the bread that comes down from heaven, so that one may eat of it and not die. 51 I am the living bread that came down from heaven. Whoever eats of this bread will live forever; and the bread that I will give for the life of the world is my flesh.”