John 6:44-51

44No man can come to me, except the Father that sent me draw him: and I will raise him up in the last day. 45It is written in the prophets, And they shall all be taught of God. Every one that hath heard from the Father, and hath learned, cometh unto me. 46Not that any man hath seen the Father, save he that is from God, he hath seen the Father. 47Verily, verily, I say unto you, He that believeth hath eternal life. 48I am the bread of life. 49Your fathers ate the manna in the wilderness, and they died. 50This is the bread which cometh down out of heaven, that a man may eat thereof, and not die. 51I am the living bread which came down out of heaven: if any man eat of this bread, he shall live for ever: yea and the bread which I will give is my flesh, for the life of the world.