Joshua 10:39-40

And he took it and its king and all its cities; they struck them with the edge of the sword and utterly destroyed all the people who were in it. He left none remaining; as he had done to Hebron, so he did to Debir and its king, as he had done also to Libnah and its king. So Joshua conquered all the land: the mountain country and the South and the lowland and the wilderness slopes, and all their kings; he left none remaining, but utterly destroyed all that breathed, as the LORD God of Israel had commanded.