King James Version (KJV) - Jeremiah 21:4 >

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.

Berean Study Bible (BSB) - Jeremiah 21:4 >

this is what the LORD, the God of Israel, says: ‘I will turn against you the weapons of war in your hands, with which you are fighting the king of Babylon and the Chaldeans who besiege you outside the wall, and I will assemble their forces in the center of this city.