Genesis 24:3 is Abraham's command not to take Canaanite wives — directly opposing Hamor's proposal of intermarriage with the local Shechemites.

Genesis 27:46 records Rebekah weary of life over Esau's Hethite wives — illustrating the grief intermarriage caused Jacob's family, the same kind of union Hamor proposes.

Isaac commanded Jacob not to marry Canaanite women. Shechem's intermarriage proposal risks the same covenant concern, though from the other direction.

Genesis 26:35 reveals Esau's Hittite marriages grieved Isaac and Rebekah — showing the negative family reaction to the very intermarriage Hamor proposes.

Shechem proposes exactly what Deut 7:3 later forbids — intermarriage with Canaanite nations. The very scenario God will prohibit is unfolding here.