Bringeth the wheel over them - He threshes them in his anger, as the wheel does the grain on the threshing-floor. Every one knows that grain was separated from its husks, in Palestine, by the feet of the oxen trampling among the sheaves, or bringing a rough-shod wheel over them. Asiatic kings often threshed their people, to bring out their property; but this is not what is intended here.
The wheel - The threshing wheel Isaiah 28:27-28, which passes over the grain and separates the grain from the chaff. The proverb involves therefore the idea of the division of the good from the evil, no less than that of the punishment of the latter.