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A Reminder that Fornication is a Serious Sin that Can Exclude Us From Heaven

The epistle from Monday’s daily Mass (30thWeek of the Year) contains an admonition against unchastity. This grave warning is essential in times like these, when many call good or “no big deal” what God calls sinful. This is especially true in the realm of sexuality; entire sectors of society not only tolerate but even celebrate sexual practices that Scripture calls gravely sinful and that will lead to Hell if not repented of. Homosexual acts, fornication, and adultery cannot be considered allowable by any Catholic or any person who sincerely accepts Scripture as the Word of God. Even those who do not share our faith should be able to observe the damage these acts cause: they spread disease, harm marriages and families, subject children to less-than-ideal households (e.g., single mother/absent father), and lead to abortion.

In today’s post I will focus on the sin of fornication and present the clear biblical teaching against it. Sadly, many Catholics report that little to nothing is heard from the pulpit or in the classroom about this issue. The hope in this post today is to present a resounding, biblical trumpet call to purity that leaves no doubt as to the sinfulness of sex before marriage. Scripture is clear: fornicators will not inherit the Kingdom of God. That is to say, fornication is a mortal sin and those who do not repent of it will go to Hell.

The usual conditions for mortal sin apply (grave matter, sufficient reflection, and full consent of the will). In most situations, these conditions are met. Over the years I have met with many sexually active couples preparing for marriage and have never found them to be surprised that I rebuke them for this. They know it is wrong; the voice of God echoes in their consciences. As for consent of the will, although some fall occasionally in a weak moment, consistent fornicating with no measures taken to prevent it (e.g., not cohabitating) is not weakness; it is sinful neglect of prudence and common sense.

We are in a sinfully confused cultural setting in which many either celebrate or make little effort to avoid what God calls serious sin. The Church must not lack clarity, yet pulpits and classrooms have often been silent. This has led to parents themselves to be silent—and silence is often taken as tacit approval.

Fornication cannot be approved of. It is sinful and excludes unrepentant sinners from Heaven. Our charity for souls compels our clarity about the grave sinfulness of premarital sex.

The following passages from the New Testament clearly condemn fornication and other unclean or impure acts. The gravity and clarity of such condemnations are helpful in the sense that they help us to take such matters seriously and steer clear of them. However, the condemnations should not be seen in isolation from God’s mercy, as He never fails to forgive those who come to Him with a humble and contrite heart. God hates sin, but He loves sinners and is full of mercy and compassion for them. This mercy must be accessed through repentance, however.

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