Bible Verses About Threshing: (Dust made by,) of complete destruction

for he left not to Jehoahaz of the people except fifty horsemen, and ten chariots, and ten thousand footmen, for the king of Aram hath destroyed them, and maketh them as dust for threshing.

Lo, I have set thee for a new sharp threshing instrument, Possessing teeth, thou threshest mountains, And beatest small, and hills as chaff thou makest.