1 Corinthians 7:2

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

Hebrews 12:16

lest any one may be a fornicator, or a profane person, as was Esau, who for one morsel sold 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 fornication, let each man have his own wife, and let each woman have her own husband.
Hebrews 12:16
lest any one may be a fornicator, or a profane person, as was Esau, who for one morsel sold his birthright.