Isaiah 28:26-29

The farmer knows just what to do, for God has given him understanding. A heavy sledge is never used to thresh black cumin; rather, it is beaten with a light stick. A threshing wheel is never rolled on cumin; instead, it is beaten lightly with a flail. Grain for bread is easily crushed, so he doesn’t keep on pounding it. He threshes it under the wheels of a cart, but he doesn’t pulverize it. The LORD of Heaven’s Armies is a wonderful teacher, and he gives the farmer great wisdom.