The Hittites, descended from Heth, son of Canaan, were by far the strongest and largest Canaanite tribe. Their huge empire, the Land of Hatti, stretched from Asia Minor to Palestine and was the major power of Abraham's time. Esau's marriage to Adah, daughter of Elon the Hittite, helped tie the Edomites, Hittites, Hivites, and Ishmaelites by blood and marriage, explaining alliances among Israel's enemies. Colonists from Anatolia, the Hittites lived in Canaan's mountains alongside the Jebusites and Amorites. The fearful spies portrayed them as unbeatable, feeding rebellion, but Caleb and Joshua countered that God was with Israel. God later promised Joshua all the land of the Hittites, which the next generation took without fear. Also see sermons and articles about Hittites.
Genesis 36:2 Esau took his wives from the daughters of Canaan: Adah the daughter of Elon the Hittite; Aholibamah the daughter of Anah, the daughter of Zibeon the Hivite;