1 Corinthians 7:2

but on account of the commonness of fornication, let every man have his own wife, and every woman her own husband.

Hebrews 12:16

lest there be any fornicator, or profane person as Esau, who for one meal sold even his birthright.

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 on account of the commonness of fornication, let every man have his own wife, and every woman her own husband.
Hebrews 12:16
lest there be any fornicator, or profane person as Esau, who for one meal sold even his birthright.