When he is about to fill his belly, God shall cast the fury of his wrath upon him, and shall rain it upon him while he is eating.
Rather, 'God shall cast (may God send) (Umbreit) upon him the fury of His wrath to fill his belly!' i:e., to satisfy his insatiable covetousness.
While eating - rather 'shall rain it upon him for his food!' Fiery rain - i:e., lightning (Psalms 11:6; alluding to John misfortune, Job 1:16). The force of the image is felt by picturing to one's self the opposite nature of a refreshing rain in the desert (Exodus 16:4; Psalms 68:9). His craving appetite, never satisfied, shall at least get enough of the kind of food which God shall send-fiery judgments rained upon him.