Joshua 10:39-40

and he captured it with its king and all its towns. And they struck them with the edge of the sword and devoted to destruction every person in it; he left none remaining. Just as he had done to Hebron and to Libnah and its king, so he did to Debir and to its king. So Joshua struck the whole land, the hill country and the Negeb and the lowland and the slopes, and all their kings. He left none remaining, but devoted to destruction all that breathed, just as the LORD God of Israel commanded.