Pastor Rob Bray | 2-8-2026
Sexual purity isn’t just a personal matter – it’s foundational to healthy Christian community. While many churches avoid addressing sexual immorality directly, Scripture speaks about it frequently and clearly. Understanding God’s design for sexuality is crucial for maintaining both our relationship with Him and our fellowship with other believers.
Why Sexual Purity Matters for Christian Community
Sexual sin doesn’t just affect the individual; it impacts the entire body of Christ. When we think our private struggles remain private, we’re deceiving ourselves. Just as a fire in one apartment can burn down an entire building, sexual sin in the church can destroy the community we’re trying to build together.
The apostle Paul understood this connection, which is why he addressed sexual immorality so directly in his letters. He knew that nothing would destroy the church faster than sexual sin running rampant among believers.
What Does God’s Will Look Like?
God’s Clear Instructions
First Thessalonians 4:3 states plainly: “For this is the will of God, your sanctification: that you abstain from sexual immorality.” Many Christians search desperately for God’s specific will for their lives while ignoring His general will that’s clearly stated in Scripture.
God’s will for every believer includes becoming more holy (sanctified) over time. This means looking more like Jesus and being set apart from the world’s standards. One primary way this happens is through sexual purity.
The Process of Sanctification
Sanctification means growing “more and more” in pleasing God. This isn’t a one-time decision but an ongoing process. Whether you’re struggling with sexual sin or walking in relative purity, there’s always room to grow in pleasing God more fully.
For some, this means repenting of sexual immorality. For others already walking in purity, it might mean helping others find freedom, serving your spouse better, or addressing thought patterns that don’t honor God.
What Does Sexual Immorality Include?
The Bible uses “sexual immorality” as an umbrella term covering many behaviors that fall outside God’s design. These include:
- Lust (sexual desire toward anyone other than your spouse).
- Pornography and sexual imagery for arousal.
- Cohabitation (living together unmarried).
- Fornication (sex between unmarried people).
- Adultery (sexual relations involving a married person outside marriage).
- Prostitution and sexual exploitation.
- Homosexual practice.
- And other sexual behaviors outside of marriage.
God’s positive design is simple: channel your sexual energy toward your covenant spouse of the opposite gender. If you don’t have a spouse, that energy should remain dormant while you pray for your future spouse or embrace contentment in singleness.
Can You Really Control Your Body?
God Gives You Power to Choose
First Thessalonians 4:4 instructs believers to “control his own body in holiness and honor.” God wouldn’t command something impossible. You have the power to say no to sexual temptation.
This isn’t about willpower alone – it’s about recognizing that God has given you dominion over your own body. No one forces you to click on inappropriate content or engage in flirtatious conversations. You make those choices, which means you can also choose differently.
The Root Issue: Lust
Sexual immorality stems from lust – wanting something you shouldn’t want. This is the same root behind other sins like pride (wanting position you shouldn’t have) or coveting (wanting what belongs to others).
The passage warns against living “in passion of lust like the Gentiles who do not know God.” If you’re controlled by sexual cravings without restraint, you’re living like someone who doesn’t truly know God.
How Sexual Sin Affects Others
You Wrong Your Brothers and Sisters
First Thessalonians 4:6 reveals something surprising: sexual sin doesn’t just wrong God – it wrongs “his brother.” When you lust after someone, whether in person or on a screen, you’re sinning against that person made in God’s image.
Sexual sin exploits others, whether through pornography that objectifies performers or through affairs that betray spouses. God is an avenger who defends those wronged by sexual exploitation.
The Community Impact
Paul uses the analogy of leaven spreading through dough to describe how sexual sin affects the church. Your body is part of the body of Christ, so your sexual choices impact the entire community.
When church leaders fall into sexual sin, it often devastates entire congregations. When members live in unrepentant sexual immorality, it weakens the church’s witness and spiritual health.
God’s Call to Holiness
You’re Called to Purity
God “has not called us for impurity, but in holiness” (1 Thessalonians 4:7). This calling to purity should be a source of joy and confidence, not burden. There’s freedom in self-control and honor in abstaining from what dishonors God.
The church’s sexual ethic should be a witness to the world – a place where people actually practice self-control and respect for one another. Instead of being known for sexual scandals, the church should be known as the place where people can “keep it in their pants.”
Don’t Grieve the Holy Spirit
When you disregard God’s instructions about sexual purity, you’re not just rejecting human teaching – you’re rejecting God “who gives his Holy Spirit to you” (1 Thessalonians 4:8).
The Holy Spirit serves as your helper and guide toward holiness. When you consistently ignore His conviction about sexual sin, you risk grieving Him to the point where He stops speaking clearly to your conscience.
The Path Forward: Repentance
If you’re trapped in sexual sin, the path forward is clear: repent. This means changing your mind, which leads to changing your life, actions, and habits.
Repentance isn’t just feeling sorry – it’s agreeing with God about your sin and taking concrete steps to change. This might involve:
- Confessing to trusted believers who can provide accountability.
- Removing sources of temptation from your environment.
- Seeking counseling or joining support groups.
- Developing new habits that honor God.
For married couples struggling with intimacy, this might mean getting counseling to reconnect physically and emotionally. Sexual intimacy serves as a thermometer for marriage health.
Life Application
This week, honestly evaluate your sexual integrity before God. If you’re struggling with sexual sin, take concrete steps toward repentance and freedom. Confess to a trusted friend or mentor who can provide accountability. Remove sources of temptation from your life and seek help through counseling or support groups.
If you’re walking in sexual purity, consider how you can help others find freedom. Perhaps you could mentor someone struggling in this area or support a spouse whose partner is confessing sexual sin.
Remember that sexual purity isn’t just about avoiding sin – it’s about honoring God with your body and protecting the spiritual health of your Christian community.
Questions for Reflection:
- Am I living according to God’s clear instructions about sexual purity?
- How might my sexual choices be affecting my relationship with God and my Christian community?
- What concrete steps do I need to take this week to honor God with my sexuality?
- If someone confessed sexual sin to me, would I respond with both truth and grace?