New Advent, Holy Scripture:
John 6:64.
It is the spirit that quickeneth: the flesh profiteth nothing. The words that I have spoken to you are spirit and life.
Commentary:
The flesh profiteth nothing… Dead flesh separated from the spirit, in the gross manner they supposed they were to eat his flesh, would profit nothing. Neither doth man’s flesh, that is to say, man’s natural and carnal apprehension, (which refuses to be subject to the spirit, and words of Christ), profit any thing. But it would be the height of blasphemy, to say the living flesh of Christ (which we receive in the blessed sacrament, with his spirit, that is, with his soul and divinity) profiteth nothing. For if Christ’s flesh had profited us nothing, he would never have taken flesh for us, nor died in us nothing, he would never have taken flesh for us, nor died in the flesh for us. Are spirit and life… By proposing to you a heavenly sacrament, in which you shall receive, in a wonderful manner, spirit, grace, and life, in its very fountain.
But ya got to keep reading, unless you read the whole text, there will be holes in your understanding of what is being said.
Again, from New Advent, Holy Scripture:
John
6:31. Our fathers did eat manna in the desert, as it is written: He gave them bread from heaven to eat.
6:32. Then Jesus said to them: Amen, amen, I say to you; Moses gave you not bread from heaven, but my Father giveth you the true bread from heaven.
6:33. For the bread of God is that which cometh down from heaven and giveth life to the world.
6:34. They said therefore unto him: Lord, give us always this bread.
6:35. And Jesus said to them: I am the bread of life. He that cometh to me shall not hunger: and he that believeth in me shall never thirst.
So the whole time, Christ was talking about Himself, that He is the Bread of Life come down from heaven.
And then later in the text:
Holy Gospel according to John:
6:50. This is the bread which cometh down from heaven: that if any man eat of it, he may not die.
6:51. I am the living bread which came down from heaven.
6:52. If any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, for the life of the world.
6:53. The Jews therefore strove among themselves, saying: How can this man give us his flesh to eat?
6:54. Then Jesus said to them: Amen, amen, I say unto you: except you eat the flesh of the Son of man and drink his blood, you shall not have life in you.
Commentary:
Except you eat and drink, etc… To receive the body and blood of Christ, is a divine precept, insinuated in this text; which the faithful fulfil, though they receive but in one kind; because in one kind they receive both body and blood, which cannot be separated from each other. Hence, life eternal is here promised to the worthy receiving, though but in one kind. Ver. 52. If any man eat of this bread, he shall live for ever; and the bread that I will give, is my flesh for the life of the world. Ver. 58. He that eateth me, the same also shall live by me. Ver. 59. He that eateth this bread, shall liver for ever.
And then the final punch:
6:55. He that eateth my flesh and drinketh my blood hath everlasting life: and I will raise him up in the last day.
6:56. For my flesh is meat indeed: and my blood is drink indeed.
6:57. He that eateth my flesh and drinketh my blood abideth in me: and I in him.
Again, you have to read the whole text to understand the whole message, you cant just pick and choose to make it lean the way you want it to.
God Bless