Hebrews 12:16

Lest there be any fornicator— We must not imagine that the apostle here mentions Esau as an example of the crime of fornication; for nothing appears in the history to shew that Esau was more guilty of this sin than any one else, who in those days had many wives; though polygamy is utterly inconsistent with the gospel dispensation. Esau is called a profane person, because, as a prophetic blessing went with the birth-right, there was a most profane contempt of it in the infamous bargain here referred to: and as an eagerness in the gratification of appetite would naturally imply a contempt of spiritual and divine blessings, sacrificed to such gratifications; it was properly expressed by profaneness. Instead of one morsel, the Greek may be more properly rendered one mess. Dr. Heylin renders it a single meal. The apostle keeps in view the point of falling from the grace of God; which if any man do, it may be no more in his power to retrieve it, than it was in Esau's to recover the blessing which he had despised.