John the Apostle
John 6:51BSB·traditional attribution

I am the living bread that came down from heaven. If anyone eats of this bread, he will live forever. And this bread, which I will give for the life of the world, is My flesh.”

John Gill Reformed Baptist

Then Jesus said unto them,.... The Jews, who were litigating this point among themselves: verily, verily, I say unto you; or you may assure yourselves of the truth of what follows, except ye eat the flesh of the son of man, and drink his blood, ye have no life in you: by "the son of man", Christ means himself; under which title he often speaks...

Jamieson-Fausset-Brown Reformed

I am, &c.--Understand, it is of MYSELF I now speak as the Bread from heaven; of MEif a man eat he shall live for ever; and "THE BREAD WHICH I WILL GIVE IS MY FLESH, WHICH I WILL GIVE FOR THE LIFE OF THE WORLD." Here, for the first time in this high discourse, our Lord explicitly introduces His sacrificial death--for only rationalists can doubt...

Geneva Bible Notes Reformed

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.