Genesis 26:34; Genesis 36:2; Genesis 46:14

34 And Esau was forty years old when he took to wife Judith the daughter of Beeri the Hittite, and Bashemath the daughter of Elon the Hittite:

2 Esau took his wives of the daughters of Canaan; Adah the daughter of Elon the Hittite, and Aholibamah the daughter of Anah the daughter of Zibeon the Hivite;

14 And the sons of Zebulun; Sered, and Elon, and Jahleel.