Genesis 34:9

And [beyond that] intermarry with us; give your daughters to us [as wives] and take our daughters for yourselves.

Genesis 6:2

that the sons of God saw that the daughters of men were beautiful and desirable; and they took wives for themselves, whomever they chose and desired.

Genesis 19:14

So Lot went out and spoke to his sons-in-law, who were [betrothed, and legally promised] to marry his daughters, and said, “Get up, get out of this place, for the Lord is about to destroy this city!” But to his sons-in-law he appeared to be joking.

Genesis 24:3

and I will make you swear by the Lord, the God of heaven and the God of earth, that you will not take a wife for my son from the daughters of the Canaanites, among whom I live,

Genesis 26:34-35

When Esau was forty years old he married Judith the daughter of Beeri the Hittite, and Basemath the daughter of Elon the Hittite as his wives;

Genesis 27:46

Then Rebekah said to Isaac, “I am tired of living because of the daughters of Heth [these insolent wives of Esau]. If Jacob takes a wife from the daughters of Heth, like these daughters of the land, what good will my life be to me?”

Deuteronomy 7:3

You shall not intermarry with them; you shall not give your daughter to his son, nor shall you take his daughter for your son;

Treasury of Scripture Knowledge

Summary

And make ye marriages with us, and give your daughters unto us, and take our daughters unto you.

Bible References

General references

Genesis 6:2
that the sons of God saw that the daughters of men were beautiful and desirable; and they took wives for themselves, whomever they chose and desired.
Genesis 19:14
So Lot went out and spoke to his sons-in-law, who were [betrothed, and legally promised] to marry his daughters, and said, “Get up, get out of this place, for the Lord is about to destroy this city!” But to his sons-in-law he appeared to be joking.
Genesis 24:3
and I will make you swear by the Lord, the God of heaven and the God of earth, that you will not take a wife for my son from the daughters of the Canaanites, among whom I live,
Genesis 26:34
When Esau was forty years old he married Judith the daughter of Beeri the Hittite, and Basemath the daughter of Elon the Hittite as his wives;
Genesis 27:46
Then Rebekah said to Isaac, “I am tired of living because of the daughters of Heth [these insolent wives of Esau]. If Jacob takes a wife from the daughters of Heth, like these daughters of the land, what good will my life be to me?”
Deuteronomy 7:3
You shall not intermarry with them; you shall not give your daughter to his son, nor shall you take his daughter for your son;