2 Chronicles 8:7-10

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

8that is, their descendants who were left in the land after them, whom the children of Israel did not destroy—from these Solomon raised forced labor, as it is to this day.

9But Solomon did not make the children of Israel servants for his work. Some were men of war, captains of his officers, captains of his chariots, and his cavalry.

10And others were chiefs of the officials of King Solomon: two hundred and fifty, who ruled over the people.