But sexual immorality and all impurity or covetousness must not even be named among you, as is proper among saints. 4 Let there be no filthiness nor foolish talk nor crude joking, which are out of place, but instead let there be thanksgiving. 5 For you may be sure of this, that everyone who is sexually immoral or impure, or who is covetous (that is, an idolater), has no inheritance in the kingdom of Christ and God. 6 Let no one deceive you with empty words, for because of these things the wrath of God comes upon the sons of disobedience.
The way that God designed our five senses so that they adjust to minimize harsh stimuli is amazing! Your eyes adjust to bright sunlight so that it doesn’t seem so bright or to a dark room so that it isn’t so dark. Your ears filter out certain noises so that you don’t even think about them. In large cities, our apartments/houses can be on a busy freeway. We got so used to the noise that it seemed weird to wake up in the middle of the night when it was quiet. Then a car would go by and we’d realize that the usual freeway noise was missing.
Your sense of smell works the same way. When I used to paint houses, the customers would come home and complain about the terrible smell of the paint. I honestly couldn’t smell anything, because I had grown used to the smell. The same thing happens with your sense of taste. Not many people like the taste of coffee at first. It’s too bitter. But after you develop a taste for it, the bitter tastes good. And, your sense of touch develops calluses so that what at first felt rough no longer bothers you.
Our spiritual senses also work like our physical senses, but with a crucial difference. While it is to our advantage in most cases to adjust to harsh physical stimuli, it is to our disadvantage spiritually. When we first hear of some terrible sin, we shrink back in horror and disgust. But if we are exposed to this sin repeatedly, so that it becomes commonplace, we tend to accept it or at least shrug it off.
Alexander Pope (1688–1744) saw this when he wrote (“Essay on Man,” in Familiar Quotations, by John Bartlett [Little, Brown, and Company], 13th ed., p. 317), “Vice is a monster of so frightful appearance. As to be hated needs but to be seen; Yet seen too oft, familiar with her face, We first endure, then pity, then embrace.”
I fear that the American church is in grave danger of pitying or embracing the sexual immorality that has engulfed our nation. (From here on, this message is probably rated PG-13, although I’ll try to keep it to a PG rating!)
Twenty years ago, Leadership journal did a survey on sex and the American clergy. Of the church leaders responding to the survey, 20 percent said that they looked at sexually oriented media (print, video, or movies) at least once a month (Winter, 1988, p. 24). This was before the Internet made such material easily available in your own home or on your laptop computer when you travel! And 38 percent of these church leaders said they find themselves fantasizing about sex with someone other than their spouse at least once a month.
The same survey asked these church leaders, “Since you’ve been in local church ministry, have you ever done anything with someone (not your spouse) that you feel was sexually inappropriate?” Twenty-three percent answered yes. The inappropriate behavior was left undefined and could have ranged from unguarded words to flirtation to adultery. When asked specifically about adultery, 12 percent of church leaders answered yes (since entering local church ministry)! Leadership asked the same questions of readers of Christianity Today magazine who were not church leaders. The incidences of immorality were nearly double, with 45 percent indicating that they had done something inappropriate, and 23 percent admitting to extramarital sex (p. 12)!
Again, this survey is now 20 years old. I’m sure that the increases in the availability of pornography, along with the increasingly degrading content of movies and television, have not improved those statistics!
The statistics are truly frightening. Key Statistics
Barna Group
- Reports that 57% of young adults (ages 18–24) seek out porn either daily, weekly, or monthly. This broader “regular use” measure includes several frequencies and suggests substantial overall engagement Barna Group.
AddictionHelp.com (2025)
- States that 57% of young adults aged 18–25 use porn monthly or more often. This is a recent figure and aligns closely with Barna’s results com.
Wikipedia (2023, Netherlands youth data)
- For a European comparison: among young men aged 22–24, 96% watched porn in the previous six months—a very high rate, but specific to the Netherlands context
Today the average teenage boy is likely to have seen thousands of explicit sexual images, ranging across the spectrum of sexualities and perversions. Many of these boys and young men are driven by sexual fantasies that previous generations of young men would not have even known existed…. Today Americans rent more than 800 million pornographic videos and DVD’s every year. About 20% of all video rentals are pornographic. At least 11,000 pornographic videos are produced annually, amounting to revenue for the adult film industry estimated at between 5 and 10 billion dollars a year….
Mohler also cites a November, 2003, “60 Minutes” report that many of the largest hotel chains, including Hilton, Marriott, Hyatt, Sheraton, and Holiday Inn, make most of their in-room profits from the sale of pay-per-view porn—with half of all guests purchasing erotic video products.
Since we’re all swimming in this filthy cesspool, the apostle Paul’s commands in our text become even more urgent, that as God’s saints, we eliminate sexual impurity from our thoughts, words, and deeds.
The reasons that he gives for his commands are not so that you will have a happy marriage (although eliminating this filth is an essential part of a happy marriage). Rather, he tells us that those who practice such things will not be in heaven, but will come under God’s wrath! Thus is it to your eternal advantage to understand and apply Paul’s words here. He is saying that…
The saints must not be immoral or greedy, but rather thankful, because the immoral and greedy will incur God’s wrath.
Verse 3 begins with “but,” drawing a contrast with the command to walk in love, just as Christ loved us and gave Himself up for us. He wants to make it clear that the love to which Christ calls us stands in stark contrast with the lust of the pagan world.
The Greco-Roman world of that day, including the city of Ephesus, was noted for moral corruption. The temple of Artemis offered ritual prostitution as part of its “worship.” Sexual promiscuity was commonplace.
The Emperor Nero was openly homosexual and was known to have been sexually involved with his own mother. So it was imperative for the church to be distinct from this immoral culture that was facing God’s judgment.
So that we all are perfectly clear, let me point out that being a moral person will not get you into heaven. Of course, none of us has been perfectly moral, because Jesus raised the standard to mental purity when He said that if we even look on a woman to lust, we have committed adultery with her in our hearts (Matt. 5:27–28).
But even if you can claim always to have been faithful to your spouse or to be chaste as a single person, it will not qualify you for heaven.
The task for the church is not to crusade to make our culture more moral, but rather to get people saved. God’s transforming our hearts is the basis for pleasing Him by a holy life. Paul makes three points:
- God’s standard for moral purity is absolute, not relative, and thus is not debatable.
We live in a day when even most professing Christians deny that God’s moral standards are absolutely true and binding on all people in all cultures.
As far back as 1991 (and I’m sure the percentages have not improved since then!), only 23 percent of “born again” or “evangelical” Christians expressed a strong belief in absolute truth (from George Barna’s What Americans Believe, cited by James Dobson in a newsletter, Dec., 1991).
In our culture at large, 47 percent now approve of homosexuality, although that breaks down into 83 percent of liberals versus 23 percent of conservatives. Among liberals, 89 percent approve of sex between an unmarried man and woman; 33 percent of conservatives agree.
U.S. Public Opinion — Gallup (2015)
- A Gallup poll conducted in May 2015 found that 61% of Americans say having a baby outside of marriage is morally acceptable. This is the highest recorded level up to that point, following a steady increase from 54% in 2012 and just 48% between 2002 and 2004.com
- During the same period, the percentage saying it was morally wrong declined—from 50% in 2002 to 35% in 2015.PMC
- So: As of 2015, nearly two-thirds of Americans considered out-of-wedlock births to be morally acceptable.
- Having a baby out of wedlock is acceptable to 83 percent of liberals and 33 percent of conservatives (The Washington Times [6/5/2007], p. A6).
But God’s standards for moral purity are not up for popular vote!
Marriage: A covenant. Like all covenants it is intentional, though it is not magical nor mystical. It is a formal agreement between a man and a woman to be faithful, loving companions to one another for life. Vows of loyalty & faithfulness are exchanged.
Sexual privileges are included in marriage, however, marriage is not sex. A man may have sex with a prostitute and be “one flesh” with her, but that does not make them married.
Marriage is about companionship (Genesis 2.18, “it is not good for man to be alone”) and loyalty/faithfulness.
Fornication: Illicit sexual intercourse of all kinds, including heterosexual intercourse with anyone who is not one’s spouse, homosexual relations of all kinds (lesbian or gay), bisexual relations, incestuous relations, bestiality, etc.
The Greek word (porneia) is the word we get “pornography” from. Thus, this may include sexual gratification through internet pornography viewing.
Like with all vows, God expects us to keep the vows we make (Numbers 30.2; Ecclesiastes 5.4).
He designed the sexual relationship for a man and a woman in a lifelong committed marriage. When practiced within these boundaries, it is a good gift from God, not something dirty. He gave us His commandments for our good.
When we violate His standards, it results in short term pleasure (that’s why we’re tempted to do it), but long term pain and problems. Keeping God’s commandments is often difficult in the short term, but deeply fulfilling in the long term.
- God’s standard includes moral purity in thought, speech, and behavior.
(1). Immorality
This is the Greek word porneia, which refers to any type of sexual immorality. It includes premarital sex, extramarital sex, incest, homosexuality, bestiality, and the use of pornography. Any sex outside of the lifelong commitment of marriage is not rooted in love (as I defined it in our last study, “a self-sacrificing, caring commitment that shows itself in seeking the highest good of the one loved”), but in lust. Outside of marriage, sex devolves into using the other person for your own gratification.
(2). Impurity
This word means “dirty” or “impure,” and was used to refer to the pus around an infected wound. In the moral realm, it refers to that which contaminates others and is repulsive and disgusting. Paul used it in 4:19 to refer to the ungodly behavior of the Gentiles, who had “given themselves over to sensuality for the practice of every kind of impurity with greediness.”
(3). Greed
As in 4:19, Paul lists greed right beside sexual sins and in 5:5 he equates it with idolatry (cf. Col. 3:5). The greedy man has a lust for more, whether it is money, material possession, or sexual conquests. Greed is motivated by selfish pleasure apart from God. It is idolatry because it seeks to find pleasure in something other than God, while rejecting God’s commandments. Sex outside of marriage is always based on greed, because its goal is to exploit the other person for your advantage, not to enrich her.
Paul says (5:3) that these three sins are “not even [to] be named among you, as is proper among saints.” Rather, he means that these sins should be unknown among Christians.
We should not be feeding our minds on these sins by watching movies or TV programs that depict them. We should not read juicy accounts of sexual sin in the press. Certainly, we should not view pornography in any form. As Paul says (Rom. 16:19b), “but I want you to be wise in what is good and innocent in what is evil.”
(4). Filthiness
This refers to any indecency, obscenity, or shameful thing. It comes from the same word root as “disgraceful” (5:12).
Thus God’s standard is absolute and it includes moral purity in thought, speech, and behavior.
- God’s standard must be your standard as a saint.
Sexual purity is not an infrequent theme in Paul’s letters. He mentions purity or warns about immorality in Romans (1, 13); 1 Corinthians (5, 6, 7, 10); 2 Corinthians (6, 7, 12); Galatians (5); Ephesians (4, 5); Colossians (3); 1 Thessalonians (4); 1 Timothy (1, 3, 4, 5), 2 Timothy (3); and Titus (1, 2, 3).
Since all of these letters are addressed to professing Christians in the church, God intends that you as a Christian be reminded of and be on guard against the sexual temptation that tempts us all.
We must model and teach God’s standard to our children.
A 1996 survey revealed that 46 percent of Michigan fifth-graders and 55 percent of eighth-graders had engaged in sex! The study showed that sex is far more common among both age groups than alcohol or drug use.
The leader of the study speculated that the high rates of intercourse could likely be attributed to television exposure (in World [6/8–15, 1996], p. 10). As far back as 1988, Josh McDowell did a survey that showed that 43 percent of 18-year-old church-attending youths had had sexual intercourse. When you broaden it to “acts of sexual intimacy,” the number went up to 65 percent among church high school seniors.
If these statistics alarm you (and they should, especially if you’re rearing children), you must model and teach your children the ways of the Lord. Don’t assume that the church will do the job, although we want to back you up.
It’s your job, not just to tell your kids that sex outside of marriage is wrong, but also to explain the wholesomeness of sex as God designed it.
You must have an open relationship where your kids can share their own struggles and temptations without fear of an angry tirade. You also must protect your family from harmful influences. Don’t watch R-rated (or most PG-13) movies. Don’t watch filthy TV shows.
Don’t have trashy magazines that tell about all of the movie stars’ latest sexual escapades lying around the house.
Also, teach (and set the example for) your daughters to dress modestly (1 Tim. 2:9), as young women who want to please the Lord.
To speak directly to you young women, you are not helping your brothers to moral purity when you dress seductively. Tight fitting, low-cut tops or low-riding pants that show off your mid-section are designed by the world to turn guys on. Scripture is clear that you are not to set a stumbling-block before your brothers. Please, ignore the world’s sensuous fashions and dress in a manner that pleases the Lord. Paul’s first point is clear: Christians must not be immoral or greedy.
- The alternative to immorality and greed is to give thanks (5:4a).
You would think that Paul would say that we are to replace sexual impurity with purity. That is true, of course, and he will state that (5:9–11). But here, he says that the alternative to sexual immorality and greed is to give thanks. Why does he say that? What does thankfulness have to do with moral purity? A lot!
If you read Paul’s account of the degradation of the human race in Romans 1:18–32, at the root of it was (1:21), “they did not honor Him as God or give thanks.”
If you’re single and burning with sexual desire, pray for a mate (1 Cor. 7:1–9). If you’re married, thank God for the mate that He has given you and work on your relationship. By the way, sexual satisfaction in marriage is very closely tied with relational intimacy. God designed it that way.
So to guard yourself against the temptation of adultery, guard your relationship with your mate. Work at it constantly. Develop a thankful heart for all of God’s blessings, including the sexual relationship in marriage.
- The immoral and greedy will not be in God’s kingdom, but will incur His wrath (5:5–6).
Paul makes two points here:
- You know for certain that no immoral or greedy person will have an inheritance in God’s kingdom (5:5).
- Don’t let anyone deceive you about such things, because the end result is God’s wrath (5:6).
Conclusion
In 1 Corinthians 6:9–10, Paul makes a similar point: “Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived; neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor homosexuals, nor thieves, nor the covetous, nor drunkards, nor revilers, nor swindlers, will inherit the kingdom of God.”
But, don’t stop reading there, or you might despair if you have committed any of those sins! He continues (6:11), “And such were some of you; but you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus Christ and in the Spirit of our God.”
Praise God! There is hope for every sinner at the cross!
Here’s a research overview on pornography use among young teens (adolescents), based on recent scholarly work. The evidence shows that exposure to pornography during adolescence is increasingly common, with implications for sexual development, mental health, and relationships.
📊 Collective Insights
- Prevalence: A majority of adolescents encounter pornography by mid-teens, often unintentionally at first. Boys report higher rates of use than girls, but girls are increasingly affected.
- Psychological Impacts: Frequent use is associated with higher risk of addiction-like behaviors, body dissatisfaction, and distorted expectations of sex and relationships.
- Social Effects: Pornography use correlates with risky sexual behaviors, sexting, and negative gender attitudes, especially when exposure starts early.
- Brain Development: Neurological studies suggest pornography use in teens may affect reward and impulse-control systems, similar to substance addiction.
- Help-Seeking & Risks: Adolescents rarely seek help for problematic pornography use, with boys especially underrepresented in support services.
- Cultural Variation: Impacts differ by gender, culture, and family background—suggesting tailored prevention strategies are needed.
- Protective Factors: Open communication with parents, comprehensive sex education, and digital literacy programs reduce harmful impacts.
1. Prevalence
- Early exposure (often accidental)
- Higher use among boys
- Increasing among girls
2. Psychological Impacts
- Addiction-like behaviors
- Body dissatisfaction
- Distorted sexual expectations
- Anxiety & depressive symptoms
3. Social Effects
- Risky sexual behaviors
- Sexting
- Negative gender attitudes
- Peer pressure & normalization
4. Brain Development
- Alters reward pathways
- Impulse-control challenges
- Similarities to substance addiction
5. Help-Seeking & Risks
- Rarely seek help
- Boys underrepresented in services
- Stigma & silence
6. Cultural Variation
- Gender differences in perception & impact
- Influence of family background
- Cultural & religious attitudes
7. Protective Factors
- Open parent–child communication
- Comprehensive sex education
- Digital/media literacy programs
- Healthy peer & community support
📚 Key Academic Sources
- Maas, M. K., Wright, P. J., & Rothman, E. F. (2024). Pornography use during adolescence: The current state of knowledge and recommendations. In Handbook of Children and Screens (pp. 356–379). Springer. PDF
– Reviews prevalence, impacts, and interventions. - Huang, M. (2025). The impact of internet pornography addiction on brain function: a functional near-infrared spectroscopy study. Frontiers in Human Neuroscience. Link
– Shows similarities between pornography addiction and drug addiction in teens’ brain activity. - Vertongen, R., & van Ommen, C. (2025). Young adolescent men’s perspectives on risks and harmful impacts of pornography use. New Media & Society. PDF
– Explores how teen boys perceive harm from pornography. - Nelson, K. M., & Weigle, P. (2024). Pornography Use During Adolescence. In Well-Being from Birth Through Adolescence. Book
– Links pornography use with adolescent mental health outcomes. - Toor, G., & Segal, T. (2025). Don’t forget the boys: service evaluation of adolescent male health needs. Archives of Disease in Childhood, 110(Suppl 1). PDF
– Notes increasing pornography use and sexual dysfunction in adolescent boys. - Hartselle, S., Deol, Y., & Miselis, K. (2025). Media Representation of Boys. Child and Adolescent Psychiatric Clinics. Abstract
– Examines gender differences in teen pornography use. - Keikha, M., Ebrahimi, M. H., & Dianati-Nasab, M. (2024). Interventions to prevent or reduce unhealthy habits in children and adolescents during restricted conditions. Frontiers in Public Health. PDF
– Evaluates interventions addressing problematic pornography use. - Harris, D. A., & Bodker, A. (2024). Help-Seeking Behaviors of Young People with Problematic Sexualized Behaviors. Journal of Child Sexual Abuse. PDF
– Documents challenges in adolescent help-seeking for problematic pornography use.





























I have decided at every place I have ministered…to spend time each year on lessons related to marriage, parenting, and the home in general. The home is God’s creation, the first divine institution, and marriage was God’s idea.


