Behold, I will turn back... — Jeremiah’s answer is far other than they looked for, and had even ventured to suggest. The judgment could no longer be averted. The hand of Jehovah was against them, and would bring the Chaldæans that were now outside the walls nearer and nearer, till they came within them. In the structure of the sentence, however, “without the walls “belongs to “wherewith ye fight.” The defenders of the city were to be driven back within its gates from the outer line of fortifications.
Related Commentaries of Jeremiah 21:4
Jeremiah 21:4
4 Thus saith the LORD God of Israel; Behold, I will turn back the weapons of war that are in your hands, wherewith ye fight against the king of Babylon, and against the Chaldeans, which besiege you without the walls, and I will assemble them into the midst of this city.