1 Corinthians 7:2

But because of immorality, each man should have his own wife, and each woman her own husband.

Hebrews 12:16

that no one be immoral or godless like Esau, who sold his own birthright for a single meal.

Treasury of Scripture Knowledge

Summary

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:

Bible References

The daughter

1 Corinthians 7:2
But because of immorality, each man should have his own wife, and each woman her own husband.
Hebrews 12:16
that no one be immoral or godless like Esau, who sold his own birthright for a single meal.