'Threshing' in the Bible

In that day the Lord will start His threshing from the flowing stream of the Euphrates to the brook of Egypt, and you will be gathered up one by one, O sons of Israel.

For dill is not threshed with a threshing sledge,Nor is the cartwheel driven over cummin;But dill is beaten out with a rod, and cummin with a club.

“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.