Azariah, the head priest from the family of Zadok, said to him, “Since the contributions began arriving in the Lord’s temple, we have had plenty to eat and have a large quantity left over. For the Lord has blessed his people, and this large amount remains.”

Now several non-Israelite peoples were left in the land after the conquest of Joshua, including the Hittites, Amorites, Perizzites, Hivites, and Jebusites. ¹ 

Their descendants remained in the land (the Israelites were unable to wipe them out). Solomon conscripted them for his work crews and they continue in that role to this very day. ¹