איוב כ:כג פירוש: רש״י

It shall come to pass that to fill his belly, He shall send upon him His burning wrath The sending of His burning wrath will be [enough] to fill his belly. This is not an expression of a curse but an expression of prophecy and of the future.

and rain upon them The Holy One, blessed be He.

with His battle With the fury of His battle, coals, fire, and brimstone, as the matter is stated (Gen. 19: 24): “And the Lord rained upon Sodom etc.”