“Sarah died in Kiriath-arba (that is, Hebron) in the land of Canaan; and Abraham went in to mourn for Sarah and to weep for her. Then Abraham rose from before his dead, and spoke to the sons of Heth, saying…“ Gen. 23:2-3
Joshua 14:15 tells us that Hebron was formerly named Kiriath-arba, and that Arba was the greatest man among the Anakim. The name therefore probably means “City of Arba”, though some commentators believe it means “City of Four”.
Abraham came to the Sons of Heth to entreat them to sell him a burial plot for Sarah. Heth was the great grandson of Noah (Noah, Ham, Canaan, Heth). The Sons of Heth were also known as the Hittites. Other Hittites are mentioned throughout scripture, including Uriah the Hittite whom King David sent to the front lines to ensure his death; additionally Esau married two Hittite women.
Ultimately, the Hittites were one of the inhabitants of the Promised Land to be defeated by the Israelites. We must remember that all people came from Adam and Eve (and for that matter, Noah and his wife, since the flood) and dispersed to live in different lands, and that scripture closely follows the lives of Abraham, Isaac, Jacob because they were the individuals that chose to follow God. The lives of other peoples are happening in the distance, and their stories will cross paths many times with the descendants of Abraham.