John Lightfoot on John 6:31

[Our fathers did eat manna.] I. They seek a sign of him worthy the Messiah; and in general they seem to look towards those dainties which that nation fondly dreamed their Messiah would bring along with him when he should come; but more particularly they expect manna.

"Ye seek me (saith our Saviour), not because ye did see the miracles, but because ye did eat of the loaves and were filled." Were all these so very poor that they had need to live at another man's charge? or should follow Christ merely for bread? It is possible they might expect other kind of dainties, according to the vain musings of that nation. Perhaps he was such a kind of slave to his belly that said, "Blessed is he that shall eat bread in the kingdom of God," Luke 14:15.

"Many affirm that the hope of Israel is, that Messiah shall come and raise the dead; and they shall be gathered together in the garden of Eden, and shall eat and drink, and satiate themselves all the days of the world....and that there are houses built of precious stones, beds of silk, and rivers flowing with wine and spicy oil." "He made manna to descend for them, in which were all manner of tastes; and every Israelite found in it what his palate was chiefly pleased with. If he desired fat in it, he had it. In it the young men tasted bread, the old men honey, and the children oil....So it shall be in the world to come [the days of the Messias]: he shall give Israel peace, and they shall sit down and eat in the garden of Eden; and all nations shall behold their condition; as it is said, Behold, my servants shall eat, but ye shall be hungry, Isaiah 65:13."

Alas, poor wretches! how do you deceive yourselves! for it is to you that this passage of being hungry while others eat does directly point.

Infinite are the dreams of this kind, particularly about Leviathan and Behemoth, that are to be served up in these feasts.

II. Compare with this especially what the Jews propound to themselves about their being fed with manna: "The latter Redeemer" [that is, Messiah; for he had spoken of the former redeemer, Moses, immediately before] "shall be revealed against them, &c. And whither will he lead them? Some say into the wilderness of Judah; others, into the wilderness of Sihon and Og." [Note that our Saviour the day before, when he fed such a multitude so miraculously, was in the desert of Og, viz. in Batanea, or Bashan.] And shall make manna descend for them. Note that. So Midras Coheleth: "The former redeemer caused manna to descend for them; in like manner shall our latter Redeemer cause manna to come down, as it is written, 'There shall be a handful of corn in the earth,' Psalm 72:16."