'Clouds' in the Bible

If the clouds are full of rain, they empty themselves on the earth; and if a tree falls toward the south, or toward the north, in the place where the tree falls, there shall it be.

He who observes the wind won't sow; and he who regards the clouds won't reap.

Before the sun, the light, the moon, and the stars are darkened, and the clouds return after the rain;