2 Chronicles 8:7-9

7All the people that were left of the Hittites, Amorites, Perizzites, Hivites and Jebusites, who were not of Israel,

8that is, those of their descendants that were left after them in the land, whom Bnei-Yisrael did not destroy—these Solomon conscripted for forced labor, as it is to this day.

9But Solomon did not make slaves of Bnei-Yisrael for his work. Rather, they were his soldiers, his chief officers and commanders of his chariots and horsemen.