On the next day, the multitude that stood on the other side of the sea saw that there was no other boat there, except the one in which his disciples had embarked, and that Jesus hadn't entered with his disciples into the boat, but his disciples had gone away alone.

 6:41-51a So the Jews kept murmuring about him, because he said: "I am the bread which came down from heaven." They kept saying: "Is this not Jesus, the son of Joseph, whose father and mother we know? How can he now say: 'I have come down from heaven'?" Jesus answered: "Stop murmuring to each other. No one can come to me except the Father who sent me draws him; and I will raise him up on the last day. It stands written in the prophets: 'And all will be taught by God.' Everyone who has listened and learned from my Father comes to me. Not that anyone has seen the Father, except he who is from God--he has seen the Father. This is the truth I tell you--he who believes has eternal life. I am the bread of life. Your fathers ate the manna in the wilderness, and died. This is the bread of life which comes down from heaven that a man may eat of him and not die. I am the bread of life which came down from heaven. If anyone eats of this bread he will live forever." 