“Who has cleft a channel for the torrents of rain and a way for the thunderbolt,
Hitherto God had put such questions to Job as were proper to convince him of his ignorance and short-sightedness. Now he comes, in the same manner, to show his impotency and weakness. As it is but little that he knows, and therefore he ought not to arraign the divine counsels, so it is but little that he can do, and therefore he ought not to oppose the proceedings of Providence.
Commenting on Job 38:25-41
To cause it to rain on the earth, where no man is; on the wilderness, wherein there is no man. Which is uninhabited by men, being so dry and barren; where there is no man to cultivate and water it, as gardens are; and where is no man to receive any advantage by the rain that comes upon it; and yet the Lord sends it...
waters--Rain falls, not in a mass on one spot, but in countless separate canals in the air marked out for them. way for the lightning-- (Job 28:26).