This is that bread which came down from heaven: not as your fathers did eat manna, and are dead: he that eateth of this bread shall live for ever.
58. This is the bread which came down from heaven. He returns to the comparison between the manna and his flesh, with which he had begun; for it was necessary that he should close the sermon in this manner: “There is no reason why you should prefer Moses to me, because he fed your fathers in the wilderness; since I supply you with far more...
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
Many therefore of his disciples,.... Not of the twelve, nor of the seventy, but of the multitude of the disciples, who followed him from place to place, attended on his ministry, and might be baptized in his name; see Joh 4:1; when they had heard this; that his flesh and blood were truly and really meat and drink, and that none had life in them...