Joshua 11:13-15

But the Israelites did not burn any of the towns built on mounds except Hazor, which Joshua burned. And the Israelites took all the plunder and livestock of the ravaged towns for themselves. But they killed all the people, leaving no survivors. As the LORD had commanded his servant Moses, so Moses commanded Joshua. And Joshua did as he was told, carefully obeying all the commands that the LORD had given to Moses.