Genesis 6:2

6:2 the sons of God saw that the daughters of humankind were beautiful. Thus they took wives for themselves from any they chose.

Genesis 19:14

19:14 Then Lot went out and spoke to his sons-in-law who were going to marry his daughters. He said, “Quick, get out of this place because the Lord is about to destroy the city!” But his sons-in-law thought he was ridiculing them.

Genesis 24:3

24:3 so that I may make you solemnly promise by the Lord, the God of heaven and the God of the earth: You must not acquire a wife for my son from the daughters of the Canaanites, among whom I am living.

Genesis 26:34-35

26:34 When Esau was forty years old, he married Judith the daughter of Beeri the Hittite, as well as Basemath the daughter of Elon the Hittite. 26:35 They caused Isaac and Rebekah great anxiety.

Genesis 27:46

27:46 Then Rebekah said to Isaac, “I am deeply depressed because of these daughters of Heth. If Jacob were to marry one of these daughters of Heth who live in this land, I would want to die!”

Deuteronomy 7:3

7:3 You must not intermarry with them. Do not give your daughters to their sons or take their daughters for your sons,