Genesis 26:34–35; Genesis 28:8

34 When Esau was forty years old, he took xJudith the daughter of Beeri the Hittite to be his wife, and Basemath the daughter of Elon the Hittite, 35 and ythey made life bitter1 for Isaac and Rebekah.

So when Esau saw mthat the Canaanite women did not please Isaac his father,