If any eat of this bread — That is, believe in me: he shall live for ever — In other words, he that believeth to the end shall be saved. My flesh which I will give you — This whole discourse concerning his flesh and blood refers directly to his passion, and but remotely, if at all, to the Lord's Supper.
Related Commentaries of John 6:51
John 6:51
51 I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world.