Parashat Chayei Sara begins with the exchange that took place between Avraham and the neighboring Chittites surrounding the Machpela cave, which Avraham sought to purchase as a burial site after his wife’s passing. Efron, who owned the property, offered to give the cave and the adjacent field to Avraham free of charge, but the patriarch insisted on paying full price. Finally, Efron said, “A land worth four hundred shekels of silver – what is it to you and me? Bury your dead [wife]” (23:15). Avraham promptly paid Efron the specified sum and took possession of the land.