20 There were still people left from the Amorites, Hittites, Perizzites, Hivites and Jebusites (these peoples were not Israelites).

Read 1 Kings 9:20 Using Other Translations

And all the people that were left of the Amorites, Hittites, Perizzites, Hivites, and Jebusites, which were not of the children of Israel,
All the people who were left of the Amorites, the Hittites, the Perizzites, the Hivites, and the Jebusites, who were not of the people of Israel--
There were still some people living in the land who were not Israelites, including Amorites, Hittites, Perizzites, Hivites, and Jebusites.