Majestic Clouds

In the clouds, the womb where all these watery meteors are conceived, guided and governed by the counsel of G-d, which extends even to those things that seem most casual and minute, that they may do whatsoever He commands them; for the stormy winds, and the clouds that are driven by them, fulfil His word; and by this means He causes it to rain upon one city and not upon another, Amos 4:7-8.
Three sorts of clouds Elihu here speaks of in Job 37:
1. Close, black, thick clouds, pregnant with showers; and these with watering he wearies, that is, they spend themselves, and are exhausted by the rain into which they melt and are dissolved, pouring out water till they are weary and can pour out no more.
2. Bright thin clouds, clouds without water; and these He scattereth; they are dispersed of themselves, and not dissolved into rain, but what becomes of them we know not. The bright cloud, in the evening, when the sky is red, is scattered, and proves an earnest of a fair day, Matt. 16:2.
3. Flying clouds, which do not dissolve, as the thick cloud, into a close rain, but are carried upon the wings of the wind from place to place, dropping showers as they go; and these are said to be turned round about by His counsels.
What we hear is not likely to profit us unless we consider it, and we are not likely to consider things fully unless we stand still and compose ourselves to the consideration of them. The works of God, being wondrous, both deserve and need our consideration, and the due consideration of them will help to reconcile us to all his providences.
We are here taught:
1. The perfection of G-d's knowledge, it is one of the most glorious perfections of G-d that He is perfect in knowledge; He is omniscient. His knowledge is intuitive: He sees, and does not know by report. It is intimate and entire: He knows things truly, and not by their colors--thoroughly, and not by piecemeal. To His knowledge there is nothing distant, but all near--nothing future, but all present--nothing hid, but all open. We ought to acknowledge this in all His wondrous works, and it is sufficient to satisfy us in those wondrous works which we know not the meaning of that they are the works of one that knows what He does.
2. The imperfection of our knowledge. It is good for us to be made sensible of our own ignorance, are so balanced, so spread, that they never rob us of the benefit of the sun (even the cloudy day is day), so balanced that they do not fall at once, nor burst into cataracts or water-spouts. The rainbow is an intimation of G-d's favour in balancing the clouds so as to keep them from drowning the world.
When we look up to heaven above we should remember it is a mirror or looking-glass, not to show us our own faces, but to be a faint representation of the purity, dignity, and brightness of the upper world and its glorious inhabitants.
Matthew Henry