Jeremiah 33:4,5

Thus saith the Lord concerning the houses of this city Not excepting those of the kings of Judah, thrown down by the mounts Namely, by the battering engines placed upon the mounts, which were raised against the walls of the city; and by the sword By the violence of war. The Hebrew word generally rendered sword may mean any instrument of iron, and particularly such as were used in demolishing any building. It is rendered a mattock by our translators, 2 Chronicles 24:6, and axes, Ezekiel 26:9. They come to fight with the Chaldeans Most interpreters understand this as spoken of the Jews sallying forth against the Chaldeans, to beat them off from the siege, which they attempted to do in vain, and to their own destruction, only thus filling the houses of Jerusalem with the dead bodies of their men, who died of the wounds received from the Chaldeans in making those sallies. And the verse is thought to come in by way of parenthesis, between the fourth and sixth, to show that at present God would not prosper any efforts that were made for the defence of the city, though he would restore it hereafter to its former splendour.