1 Kings 9:20-23

The remnants from the original inhabitants of the land (Amorites, Hittites, Perizzites, Hivites, and Jebusites—all non-Israelites), survivors of the holy wars, were rounded up by Solomon for his gangs of slave labor, a policy still in effect. But true Israelites were not treated this way; they were used in his army and administration—government leaders and commanders of his chariots and charioteers. They were also the project managers responsible for Solomon’s building operations—550 of them in charge of the workforce.