'Thresh' in the Bible

Grain for bread is crushed,Indeed, he does not continue to thresh it forever.Because the wheel of his cart and his horses eventually damage it,He does not thresh it longer.

“Behold, I have made you a new, sharp threshing sledge with double edges;You will thresh the mountains and pulverize them,And will make the hills like chaff.

Ephraim is a trained heifer that loves to thresh,But I will come over her fair neck with a yoke;I will harness Ephraim,Judah will plow, Jacob will harrow for himself.

“Arise and thresh, daughter of Zion,For your horn I will make ironAnd your hoofs I will make bronze,That you may pulverize many peoples,That you may devote to the Lord their unjust gainAnd their wealth to the Lord of all the earth.

Or is He speaking altogether for our sake? Yes, for our sake it was written, because the plowman ought to plow in hope, and the thresher to thresh in hope of sharing the crops.