2 Chronicles 8:7-9

7There were still people left from the Hittites, Amorites, Perizzites, Hivites and Jebusites (these people were not Israelites).

8Solomon conscripted the descendants of all these people remaining in the land—whom the Israelites had not destroyed—to serve as slave labor, as it is to this day.

9But Solomon did not make slaves of the Israelites for his work; they were his fighting men, commanders of his captains, and commanders of his chariots and charioteers.