John 6:53-63

53 Jesus, therefore, said to them, `Verily, verily, I say to you, If ye may not eat the flesh of the Son of Man, and may not drink his blood, ye have no life in yourselves;
54 he who is eating my flesh, and is drinking my blood, hath life age-during, and I will raise him up in the last day;
55 for my flesh truly is food, and my blood truly is drink;
56 he who is eating my flesh, and is drinking my blood, doth remain in me, and I in him.
57 `According as the living Father sent me, and I live because of the Father, he also who is eating me, even that one shall live because of me;
58 this is the bread that came down out of the heaven; not as your fathers did eat the manna, and died; he who is eating this bread shall live -- to the age.'
59 These things he said in a synagogue, teaching in Capernaum;
60 many, therefore, of his disciples having heard, said, `This word is hard; who is able to hear it?'
61 And Jesus having known in himself that his disciples are murmuring about this, said to them, `Doth this stumble you?
62 if then ye may behold the Son of Man going up where he was before?
63 the spirit it is that is giving life; the flesh doth not profit anything; the sayings that I speak to you are spirit, and they are life;
Young's Literal Translation is in the public domain.