In Genesis 27:46, Rebekah voices the grief from 26:35 explicitly, telling Isaac Esau's Hittite wives make her life miserable — driving Jacob's departure.

In Genesis 28:1, Isaac responds to Esau's marriage grief by commanding Jacob not to marry Canaanite women.

In Genesis 28:2, Isaac sends Jacob to Rebekah's family for a wife — the direct remedy for Esau's painful choice.

In Genesis 28:8, Esau realizes his Hittite wives displeased Isaac and tries to fix it by marrying Ishmael's daughter.

In Genesis 24:3, Abraham swore Isaac would not marry Canaanite women — the same family standard Esau's marriages violated.

Genesis 36:2 catalogs the same Hittite and Canaanite wives of Esau that caused grief in 26:35.