And the Lord delivered Lachish into the hands of Israel, and Joshua took it on the second day and smote it with the sword, and all the people in it, as he had done to Libnah.
So the Rabshakeh returned and found the king of Assyria fighting against Libnah [a fortified city of Judah]; for he had heard that the king had departed from Lachish.
And when the Lord your God gives them over to you and you smite them, then you must utterly destroy them. You shall make no covenant with them, or show mercy to them.
Joshua took Makkedah that day and smote it and its king with the sword and utterly destroyed everyone in it. He left none remaining. And he did to the king of Makkedah as he had done to the king of Jericho. [Josh. 6:21.]
And Joshua took all the cities of those kings and all the kings and smote them with the sword, utterly destroying them, as Moses the servant of the Lord commanded. [Deut. 20:16.]