“I am the living bread which came down from heaven. If anyone eats of this bread, he will live forever; and the bread that I shall give is My flesh, which I shall give for the life of the world.” The Jews therefore quarreled among themselves, saying, ‘How can this Man give us His flesh to eat?’ Then Jesus said to them, “Most assuredly, I say to you, unless you eat the flesh of the Son of Man and drink His blood, you have no life in you.” John 6:51-53.
“Jesus answered them and said, ‘Most assuredly, I say to you, you seek Me, not because you saw the signs, but because you ate of the loaves and were filled. Do not labor for the food which perishes, but for the food which endures to everlasting life, which the Son of Man will give you, because God the Father has set His seal on Him.’” John 6:26-27.
“Then they said to Him, ‘What shall we do, that we may work the works of God?’ Jesus answered and said to them, ‘This is the work of God, that you believe in Him whom He sent.’” John 6:28-29.