I am the living bread which came down from heaven: if any man eat of this bread, he shall live forever: and the bread that I will give is my flesh, which I will give for the life of the world.
All Commentaries on John 6:51 Go To John 6
Tertullian of Carthage
AD 220
Now, just before (the passage in hand), He had declared His flesh to be "the bread which cometh down from heaven"