1 Kings 9:15, 22-23

Now this is the account of the forced labor which King Solomon conscripted to build the house of the LORD, his own house, the Millo (fortification), the wall of Jerusalem, [and the fortress cities of] Hazor, Megiddo, and Gezer.

But Solomon did not make slaves of the sons of Israel; for they were men of war (soldiers), his servants, his officers, his captains, his chariot commanders, and his horsemen. These were the chief officers who were over Solomon’s work, five hundred and fifty, who ruled over the people doing the work.