Genesis 28:1-2, 8

Then Isaac called Jacob and blessed him and directed him, “You must not take a wife from the Canaanite women. Arise, go to Paddan-aram to the house of Bethuel your mother’s father, and take as your wife from there one of the daughters of Laban your mother’s brother.

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