you are taking that out of context, It is OUR flesh that profits us nothing.
It is NOT the flesh of Jesus that profits nothing, especially since Jesus also tells us in verses 49 to 58:
49 Your fathers ate manna in the desert and they are dead;
50 but this is the bread which comes down from heaven, so that a person may eat it and not die.
51 I am the living bread which has come down from heaven. Anyone who eats this bread will live for ever; and the bread that I shall give is my flesh, for the life of the world.’
52 Then the Jews started arguing among themselves, ‘How can this man give us his flesh to eat?’
53 Jesus replied to them: In all truth I tell you, if you do not eat the flesh of the Son of man and drink his blood, you have no life in you.
54 Anyone who does eat my flesh and drink my blood has eternal life, and I shall raise that person up on the last day.
55 For my flesh is real food and my blood is real drink.
56 Whoever eats my flesh and drinks my blood lives in me and I live in that person.
57 As the living Father sent me and I draw life from the Father, so whoever eats me will also draw life from me.
58 This is the bread which has come down from heaven; it is not like the bread our ancestors ate: they are dead, but anyone who eats this bread will live for ever.
The flesh and blood of Jesus is eternal life, and the profit of THAT is incalculably important, and he knew it.
Jesus also allowed his disciples to walk away, to LEAVE THEIR SALVATION without argument from Him:
“you are taking that out of context, It is OUR flesh that profits us nothing.”
It says “the” flesh, not OUR flesh. The immediate reference is to those who were offended at the concept of literally eating and drinking His blood.
“It is NOT the flesh of Jesus that profits nothing, especially since Jesus also tells us in verses 49 to 58:”
The flesh He is offering goes to the cross, takes on the sin of the world, dies and rises again. But, in response to people getting offended at the literal idea of eating and drinking blood, Christ says His words are spiritual, and the flesh profiteth nothing. IOW, eating and drinking Christ’s physical body would have no effect, as the real effect required is a spiritual effect, that occurs in the heart for all those who believe.
It is NOT like the manna that came down in the wilderness, that men did literally eat.
Joh 6:58 This is that bread which came down from heaven: not as your fathers did eat manna, and are dead: he that eateth of this bread shall live for ever.
It is a spiritual bread, attained through Faith:
Joh 6:47 Verily, verily, I say unto you, He that believeth on me hath everlasting life.
It's not Jesus' flesh that gives life, but the Holy Spirit. The blood is for the atonement.
His flesh and blood do not have magical powers.
As far as *the Spirit gives life, the flesh counts for nothing* that is another misinterpretation by the Catholics. He isn't talking about the Holy spirit in the first part of the sentence and OUR flesh in the second.