This is the bread which cometh down from heaven, that a man may eat thereof, and not die.
Christ let them question Him freely, no small condescension. The wise teacher listens swiftly and turns even foolish questions toward what profits. These Galileans asking "What shall we do?" show a teachable mind, unlike the Judean critics who came only to cavil. He answers the sincere request, not the impertinent quibble.
AI summary
Commenting on John 6:28-59
The Jews therefore strove among themselves,.... Fell to cavilling and disputing one among another; some understanding Christ, and others not; some being for him, and vindicated what he said; and others being against him, and who were the majority, objected, saying how can this man give us his flesh to eat?
This is the bread which cometh down from heaven, that a man may eat thereof, and not die. (p) He refers to himself when he speaks these words.