John 6:44-58

no one is able to come unto me, if the Father who sent me may not draw him, and I will raise him up in the last day; it is having been written in the prophets, And they shall be all taught of God; every one therefore who heard from the Father, and learned, cometh to me; not that any one hath seen the Father, except he who is from God, he hath seen the Father. ‘Verily, verily, I say to you, He who is believing in me, hath life age-during; I am the bread of the life; your fathers did eat the manna in the wilderness, and they died; this is the bread that out of the heaven is coming down, that any one may eat of it, and not die. ‘I am the living bread that came down out of the heaven; if any one may eat of this bread he shall live — to the age; and the bread also that I will give is my flesh, that I will give for the life of the world.’ The Jews, therefore, were striving with one another, saying, ‘How is this one able to give us [his] flesh to eat?’ 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; 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; for my flesh truly is food, and my blood truly is drink; he who is eating my flesh, and is drinking my blood, doth remain in me, and I in him. ‘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; 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.’