Genesis 26:33-35

Young's Literal Translation

³³ and he calleth it Shebah, [oath,] therefore the name of the city [is] Beer-Sheba, [well of the oath,] unto this day.

³⁴ And Esau is a son of forty years, and he taketh a wife, Judith, daughter of Beeri the Hittite, and Bashemath, daughter of Elon the Hittite,

³⁵ and they are a bitterness of spirit to Isaac and to Rebekah.