1 Kings 9:20-22

Solomon did not force the Israelites to do his work. They were his soldiers, officials, leaders, commanders, chariot captains, and chariot drivers. But he did make slaves of the Amorites, Hittites, Perizzites, Hivites, and Jebusites who were living in Israel. These were the descendants of those foreigners the Israelites could not destroy, and they remained Israel's slaves.