Do you know the laws of the heavens? Can you set their dominion over the earth?
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
Who hath put wisdom in the inward parts?.... That is, of man, in his heart, as explained in the next clause; such wisdom as to guide the stars, know the ordinances of heaven, set their dominion on earth, manage and direct the clouds and lightning; no such wisdom is put in man: or who hath, given understanding to the heart?
ordinances--which regulate the alternations of seasons, &c. (Gen 8:22). dominion--controlling influence of the heavenly bodies, the sun, moon, &c., on the earth (on the tides, weather) (Gen 1:16; Psa 136:7-9).