John 6:63 It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.
He was saying that those who thought it was physical flesh and blood were thinking carnally and not spiritually.
Now, answer my question. Why do you assign to Jesus the sin of eating blood?
53Jesus said to them, “Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you.
54Whoever eats* my flesh and drinks my blood has eternal life, and I will raise him on the last day.
55For my flesh is true food, and my blood is true drink.
56Whoever eats my flesh and drinks my blood remains in me and I in him
WE DO WHAT HE COMMANDS US TO DO!!! and YOU DO WHAT???