John the Apostle
John 6:56BSB·traditional attribution

Whoever eats My flesh and drinks My blood remains in Me, and I in him.

John Calvin Reformed @genevareformer

56. He who eateth my flesh. This is another confirmation; for while he alone has life in himself, he shows how we may enjoy it, that is, by eating his flesh; as if he had affirmed that there is no other way in which he can become ours, than by our faith being directed to his flesh.

Matthew Henry Presbyterian @wholebiblehenry

Whether this conference was with the Capernaites, in whose synagogue Christ now was, or with those who came from the other side of the sea, is not certain nor material; however, it is an instance of Christ's condescension that he gave them leave to ask him questions, and did not resent the interruption as an affront, no, not from his common hearers, though not his immediate followers.

Commenting on John 6:28-59

John Gill Reformed Baptist @doctorgill

This is that bread which came down from heaven,.... That true bread, the bread of God, the bread of life, living bread; meaning himself, as in Joh 6:32; not as your fathers did eat manna, and are dead: this is bread of a quite different nature from that; that was only typical bread, this true; that was the bread of angels, but this is the...