I thought it was “this is my body…do this in remembrance of me.” For the bread of God is he which cometh down from heaven, and giveth life unto the world. Then said they unto him, Lord, evermore give us this bread. And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he that believeth on me shall never thirst." John 6:33-35.
“And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life…” John 6:40
“It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.” John 6:63
Jesus was talking spiritually, not physically. He was explaining that spiritually, all life comes through faith in Him, not eating His body.
“For I have received of the Lord that which also I delivered unto you, That the Lord Jesus the same night in which he was betrayed took bread: And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me.” 1 Corinthians 11:23-24