1 Kings 9:20-23

20As for all the people who remained of the Amorites, Hittites, Perizzites, Hivites, and Jebusites (the people who were not Israelites)— 21their descendants who remained in the land, those whom the Israelites were unable to devote to destruction1—Solomon conscripted these people to be forced laborers, as they are to this day.

22But Solomon did not consign any of the Israelites to slavery, because they were his men of war, his servants, his officers, his captains, and the commanders of his chariots and cavalry. 23They were also the chief officers over Solomon’s projects: 550 supervisors over the people who did the work.