1 Kings 9:21 in the World English Bible
their children who were left after them in the land, whom the children of Israel were not able utterly to destroy—of them Solomon raised a levy of bondservants to this day.
Context
20 And all the people that were left of the Amorites, Hittites, Perizzites, Hivites, and Jebusites, which were not of the children of Israel,
21 Their children that were left after them in the land, whom the children of Israel also were not able utterly to destroy, upon those did Solomon levy a tribute of bondservice unto this day.
22 But of the children of Israel did Solomon make no bondmen: but they were men of war, and his servants, and his princes, and his captains, and rulers of his chariots, and his horsemen.