John 6:30,31 - Joseph Benson’s Commentary on the Old and New Testaments

They said, What sign showest thou What miracle dost thou work; that we may see and believe thee? Since thou requirest us to give thee credit, and to regard thee as invested with a higher character than has been claimed by any one before, produce thy credentials; give some evidence of a superior kind to what has been done by others. Thus these unreasonable men speak, though they had just before seen the astonishing miracle of the loaves and fishes, one of the most extraordinary displays of creating power that could well be conceived, and though several of them lived in the neighbourhood of Capernaum, where he had long multiplied his wonders! But the greatest miracles are lost on persons who are blinded by prejudice, and whose minds are earthly, sensual, and devilish! The views and opinions, however, of those that speak to Christ in this discourse, are so various, (compare John 6:34; John 6:41-42,) and the evangelist so expressly declares that there was a debate between some and others of them, (John 6:52,) that it would be wrong to imagine these to have been the perverse and ungrateful sentiments of the whole multitude, who had followed him with so much eagerness from place to place, for several days. Our fathers did eat manna By extolling the miracle of the manna, and by calling it bread from heaven, and by insinuating that it was Moses's miracle, the Jews endeavoured to disparage both Christ's mission and his miracle of the loaves, which they affected to despise, as no miracle in comparison. It was only a single meal of terrestrial food, at which nine or ten thousand had been fed: whereas Moses with celestial food, fed the whole Jewish nation, in number upward of two millions, and that not for a day, but during the space of forty years in the wilderness.