Adam Clarke on Micah 4:12

But they know not the thoughts of the Lord - These think that God has utterly rejected his people, and they shall have a troublesome neighbor no more: but this is not his design; he will afflict them for a time; but these, the enemies of his people, he will gather as sheaves into the threshing-floor, there to be trodden, and the wheel to go over them. This is the counsel, the purpose of God, which these do not understand. The persons here referred to are not only the Chaldeans which were threshed by the Persians and Medes; but the Idumeans, Ammonites, Moabites, and Philistines, which the Jews afterwards subdued.