Psalms 78:23

Lastly, when both these things have been briefly touched, afterwards he is evidently following out the order of the narrative. "Because they believed not in God, nor hoped in His saving health." For when he had told why fire was lighted in Jacob, and anger went up upon Israel, that is to say, "because they believed not in God, nor hoped in His saving health:" immediately subjoining the evident blessings for which they were ungrateful, he saith, "and He commanded the clouds above, and opened the doors of Heaven." "And He rained upon them manna to eat, and gave them bread of Heaven." "Bread of angels man did eat: dainties He sent them in abundance." "He brought over the South Wind from Heaven, and in His virtue He led in the South West Wind." "And He rained upon them fleshes like dust, and winged fowls like the sand of the sea." "And they fell in the midst of their camp, around their tabernacles." "And they ate and were filled exceedingly; and their desire He brought to them: they were not deprived of their desire." Behold why He had delayed. But what He had delayed let us hear. "Yet the morsel was in their mouths, and the anger of God came down upon them." Behold what He had delayed. For before "He delayed:" and afterwards, "fire was lighted in Jacob and anger went up upon Israel." He had delayed therefore in order that He might first do what they had believed that He could not do, and then might bring upon them what they deserved to suffer. For if they placed their hope in God, not only would their desires of the flesh but also those of the spirit have been fulfilled. […]

Though he had commanded the clouds from above,.... Which were round about him, his chariots, and the dust of his feet; and which were at his command to go here and there, and carry and let down provisions for his people, as they did: and opened the doors of heaven; as a large granary, from whence the manna, afterwards called the corn of heaven, was given out in great abundance, which is signified by opening the doors; see Mal 3:10.

God, who has the key of the clouds, opened the doors of heaven, and that is more than opening the windows, which yet is spoken of as a great blessing, Mal. iii. To all that by faith and prayer ask, seek, and knock, these doors shall at any time be opened; for the God of heaven is rich in mercy to all that call upon him.

Though he had commanded the clouds from above. Such a marvel ought to have rendered unbelief impossible: when clouds become granaries, seeing should be believing, and doubts should dissolve. And opened the doors of heaven. The great storehouse doors were set wide open, and the corn of heaven poured out in heaps. Those who would not believe in such a case were hardened indeed; and yet our own position is very similar, for the Lord has wrought for us great deliverances, quite as memorable and undeniable, and yet suspicions and forebodings haunt us. He might have shut the gates of hell upon us, instead of which he has opened the doors of heaven; shall we not both believe in him and magnify him for this?

Though he had commanded the clouds from above. Such a marvel ought to have rendered unbelief impossible: when clouds become granaries, seeing should be believing, and doubts should dissolve. And opened the doors of heaven. The great storehouse doors were set wide open, and the corn of heaven poured out in heaps. Those who would not believe in such a case were hardened indeed; and yet our own position is very similar, for the Lord has wrought for us great deliverances, quite as memorable and undeniable, and yet suspicions and forebodings haunt us.