1 Kings 9:19-22

19as well as all the storage cities, chariot cities and cavalry cities and that it pleased Solomon to build in Jerusalem, in Lebanon, and in all the land of his dominion.

20As for all the people that were left of the Amorites, the Hittites, the Perizzites, the Hivites, and the Jebusites, who were not of the children of Israel,

21even their children who remained in the land after them whom the children of Israel were not able to destroy utterly, on them Solomon imposed forced labor until this day.

22But Solomon did not make slaves of the children of Israel, for they were the men of war, his servants, his officials, his captains, his charioteers and his horsemen.