Joshua 10:5 - Joseph Benson’s Commentary on the Old and New Testaments

The five kings of the Amorites This name is here taken generally for any of the Canaanites. But, strictly speaking, the citizens of Hebron were Hittites, those of Jerusalem, Jebusites, and the Gibeonites made a part of the Hivites. It is reasonably supposed that the Amorites, being numerous and victorious beyond Jordan, had poured forth colonies into the land of Canaan, subdued divers places, and so communicated their name to all the rest.