The Biblical Stand on Sexual Immorality: What You Need to Know
Skip to content

Viral Believer is reader-supported. We may earn a small fee from products we recommend at no charge to you. Read Our Affiliate Disclosure

The Biblical Stand on Sexual Immorality: What You Need to Know

Sexual immorality is a topic that is often misinterpreted or simply avoided in discussions among Christians. However, understanding what the Bible says about this important issue is essential for living a life of purity and obedience to God’s Word. In this post, we will explore a comprehensive view of what is considered sexual immorality according to the Bible and the reasons for God’s strict regulations on this matter.

The Scriptures provide clear boundaries and guidelines for human behavior, including sexual behavior. In order to maintain a healthy relationship with God and fellow believers, it is crucial to understand what constitutes sexual immorality and how it deeply affects our lives. As we go through this discussion, let us not forget that the ultimate aim is our spiritual growth and the preservation of God’s sacred institution of marriage.

Key Takeaways

  1. Sexual immorality is any sexual behavior outside the boundaries of a Biblically-defined marriage between a man and a woman.
  2. The Bible speaks against various forms of sexual immorality, such as fornication, adultery, homosexuality, and incest.
  3. Sexual immorality carries heavy consequences, both spiritually and physically.
  4. God’s intention for sexuality is to be enjoyed within the confines of a pure and holy marriage.
  5. We are called to flee from sexual immorality and uphold God’s standards of purity.
The biblical stand on sexual immorality: what you need to know

The Bible’s Definition of Sexual Immorality

Fornication (Pre-marital sex)

The term “sexual immorality” translates the Greek word “porneia,” which encompasses a variety of sexual sins, including fornication. Fornication is sexual intercourse between unmarried persons. The Bible speaks against this act, as it defiles the sacredness of marriage and violates God’s intention for sex.

1 Corinthians 6:18-20 states, “Flee sexual immorality. Every sin that a man does is outside the body, but he who commits sexual immorality sins against his own body. Or do you not know that your body is the temple of the Holy Spirit who is in you, whom you have from God, and you are not your own? For you were bought at a price; therefore glorify God in your body and in your spirit, which are God’s.”

Adultery (Extramarital sex)

Another form of sexual immorality that the Bible strongly condemns is adultery. Adultery is when a married person engages in sexual relations with someone other than their spouse. It is a serious breach of trust between marriage partners and a direct violation of God’s commandments.

Exodus 20:14 says, “You shall not commit adultery.” Jesus also highlights the gravity of this sin by equating lustful thoughts with adultery in Matthew 5:28: “But I say to you that whoever looks at a woman to lust for her has already committed adultery with her in his heart.”


The Bible also identifies homosexuality as a form of sexual immorality. Both the Old and New Testaments specifically address this issue and express God’s disapproval of homosexual acts.

Leviticus 18:22 says, “You shall not lie with a male as with a woman. It is an abomination.” In the New Testament, Romans 1:26-27 states, _”For this reason God gave them up to vile passions. For even their women exchanged the natural use for what is against nature. Likewise also the men, leaving the natural use of the woman, burned in their lust for one another, men with men committing what is shameful, and receiving in themselves the penalty of their error which was due.”


Sexual relations between close relatives are also condemned as sexual immorality in the Bible. Incest is strictly forbidden, and the Scriptures provide a list of prohibited relationships in Leviticus 18:6-18.

An example from this passage is Leviticus 18:9, “The nakedness of your sister, the daughter of your father, or the daughter of your mother, whether born at home or elsewhere, their nakedness you shall not uncover.”

Other Prohibited Practices

The Bible prohibits other sexually immoral practices, such as bestiality (Exodus 22:19), prostitution (Deuteronomy 23:17-18), and the exchange of partners (Leviticus 20:10). These acts are also considered grave sins because they distort God’s design for human sexuality.

The Consequences of Sexual Immorality

Spiritual Consequences

Sexual immorality has devastating spiritual consequences. It not only breaks the bond between a person and their spouse but also harms their relationship with God. Those who engage in sexual immorality are in direct disobedience to God and His Word.

1 Corinthians 6:9-10 warns, “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 homosexuals, nor sodomites, nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners will inherit the kingdom of God.”

Physical Consequences

In addition to the spiritual consequences, sexual immorality can lead to a range of physical and emotional consequences such as unwanted pregnancies, sexually transmitted infections, and broken relationships.

Proverbs 5:11-12 illustrates this point, “At the end of your life, you will groan when your flesh and your body are spent, and you will say, ‘How I hated discipline, and my heart despised reproof!'”

God’s Design for Sexuality

Sex in Marriage

God’s design for sexuality is to be enjoyed exclusively within the confines of a pure and holy marriage between one man and one woman. This sacred act creates a deep connection between husband and wife, strengthening their bond and reflecting God’s love for His people.

Hebrews 13:4 states, “Marriage is honorable among all, and the bed undefiled; but fornicators and adulterers God will judge.”

The Gift of Intimacy

Sexual intimacy within marriage is a gift from God, meant to bring pleasure and fulfillment to both partners. It also serves as a means of procreation, allowing couples to fulfill God’s command to “be fruitful and multiply” (Genesis 1:28).

Song of Solomon 1:2 captures the beauty of God-ordained sexual intimacy, “Let him kiss me with the kisses of his mouth! For your love is better than wine.”

A Picture of Christ and the Church

Lastly, the union between husband and wife is symbolic of the relationship between Christ and His church. Marriage is a covenant commitment designed to reflect the unbreakable bond between Jesus and His followers, as described in Ephesians 5:31-32.

Fleeing Sexual Immorality and Striving for Purity

The Call to Flee

As Christians, we are called to flee from sexual immorality and live lives that honor and glorify God. This means turning away from the temptations and desires of the flesh and seeking God’s will in all aspects of our lives.

2 Timothy 2:22 emphasizes this call, “Flee also youthful lusts; but pursue righteousness, faith, love, peace with those who call on the Lord out of a pure heart.”

Seeking Forgiveness and Restoration

For those who have fallen into sexual immorality, there is hope for forgiveness and restoration through Jesus Christ. By acknowledging our sins and seeking God’s mercy, we can be cleansed and reconciled to Him.

1 John 1:9 promises, “If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.”

Living a Life of Purity

By the grace of God, we can strive for purity in every aspect of our lives. Through prayer, studying Scripture, and cultivating accountability with fellow believers, we can grow in holiness and resist the temptations of sexual immorality.


In conclusion, understanding and addressing the issue of sexual immorality within the context of the Bible is essential for living a life that honors God. As Christians, we are called to abide by God’s design for sexuality and to flee from all forms of sexual immorality. When we embrace the gift of intimacy within the sanctity of marriage and live according to God’s guidelines, we demonstrate our love and commitment to Him, as well as to our spouses. Through Christ, we can find forgiveness, redemption, and the strength to pursue a life of purity.

Pastor duke taber
Pastor Duke Taber

Pastor Duke Taber

All articles have been written or reviewed by Pastor Duke Taber.
Pastor Duke Taber is an alumnus of Life Pacific University and Multnomah Biblical Seminary.
He has been in pastoral ministry since 1988.
Today he is the owner and managing editor of 3 successful Christian websites that support missionaries around the world.
He is currently starting a brand new church in Mesquite NV called Mesquite Worship Center, a Non-Denominational Spirit Filled Christian church in Mesquite Nevada.