Joshua 10:39-40

They captured that city, its king, and all the little towns near it, completely destroying everyone in Debir as an offering to the LORD; no one was left alive there. Israel did to Debir and its king just as they had done to Libnah and its king, just as they had done to Hebron. So Joshua defeated all the kings of the cities of these areas: the mountains, southern Canaan, the western hills, and the slopes. The LORD, the God of Israel, had told Joshua to completely destroy all the people as an offering to the LORD, so he left no one alive in those places.