=30, 31. What therefore doest thou as a sign that we may see and believe thee?= This response of theirs brings out the contrast between faith and belief. Christ has said, Believe in him whom God hath sent; the people, recognizing his reference to himself, reply, Why should we believe you? or, as Norton renders it, “give you credit.” He calls for an affectionate and confiding belief in his person and work, they decline to give him simple credence.--=What dost thou work?= This is not, as Maurice seems to interpret it, the language of a spiritual yearning, but, as Alford, Stier, Meyer, the language of unbelief and opposition, a sarcastic retort of his own words. “Thou commandest us,” say they, “to work; what dost thou work thyself?” This demand, coming so soon after the feeding of the five thousand, has given rise to some perplexity, and rationalistic commentators cite it as an evidence that no such miraculous feeding took place. If not, why should the people refer to the manna? The fact is that, though the five thousand were fed, no explanation was made to them of the way in which the food was provided; they were commanded to take their seats; the barley cakes, the bread of the poorest peasantry, were distributed among them; they were doubtless astonished; but no conclusions were drawn for them, and they were not in the habit of drawing conclusions for themselves. When, therefore, on the Sabbath, Christ met in the synagogue some of those who had been fed, together with others who had not been present, nothing was more natural than this demand, impliedly for both a repetition and an explanation of the miracle. This is the significance of the reference to the O. T. account of the miracle of the manna, “He gave them bread from heaven to eat” (Ps. 78:24). It was as if they said, The Psalmist has explicitly pointed out the way in which the commission of Moses was confirmed; leave us not in the dark respecting the feeding of the multitude, which was, indeed, strange, but which has not been interpreted.--There is also implied a contrast between the work of Moses and the work of Christ; the manna came down from heaven, the bread was distributed upon the earth; the manna was given day by day as needed for forty years, the bread had been given but once; the manna was a sweet and delicate food, “the taste of it like wafers with honey” (Exod. 16:31), and it was among the rabbinical prophecies that the Messiah would cause manna to descend which would please all tastes, “bread for the young men, honey for the old, oil for the children;” but the bread which Christ had distributed was barley bread, the commonest fare of the poorest people. 32 Then Jesus said unto them, Verily, verily, I say unto you, Moses gave you not that bread from heaven; but my[221] Father giveth you the true bread from heaven. [221] Gal. 4:4. 33 For the bread of God[222] is he which cometh down from heaven, and giveth life unto the world.