What does the Bible teach about human sexuality and gender?
Question 5002
Few topics generate more heat in our current cultural moment than questions of sexuality and gender. Yet these are not merely contemporary concerns; they go to the very heart of what it means to be human. Scripture speaks clearly and beautifully about how God designed us as sexual beings, and understanding this design is essential for living faithfully and flourishing as God intended.
Created as Sexual Beings
The Bible’s teaching on sexuality begins at the very beginning. Genesis 1:27 declares, “So God created man in his own image, in the image of God he created him; male and female he created them.” From the first chapter of Scripture, we learn that sexual differentiation is not an accident of evolution or a social construct but part of God’s deliberate creative design. Being male or female is integral to bearing God’s image.
The Hebrew terms used here are zakar (זָכָר) for male and neqebah (נְקֵבָה) for female. These are biological terms referring to the physical, bodily reality of sexual difference. This distinction is then blessed by God and connected to the mandate to “be fruitful and multiply” (Genesis 1:28). Sexuality, in the biblical view, is good, purposeful, and meant to be celebrated within its proper context.
The Purpose of Sexual Differentiation
Genesis 2 expands on the creation account, showing us why God made humanity male and female. After creating Adam, God declares, “It is not good that the man should be alone; I will make him a helper fit for him” (Genesis 2:18). The woman is not an afterthought but the completion of God’s creative work. The Hebrew phrase ezer kenegdo (עֵזֶר כְּנֶגְדּוֹ) means a helper corresponding to him, one who complements and completes.
When Adam sees Eve, he exclaims, “This at last is bone of my bones and flesh of my flesh” (Genesis 2:23). There is recognition, celebration, and union. The text then states, “Therefore a man shall leave his father and his mother and hold fast to his wife, and they shall become one flesh” (Genesis 2:24). Jesus himself quotes this passage as establishing the foundational pattern for marriage and sexual union (Matthew 19:4-6).
Sexual union, then, is designed by God to occur within the covenant of marriage between one man and one woman. It serves multiple purposes: procreation, companionship, pleasure, and as a living picture of the relationship between Christ and his Church (Ephesians 5:31-32).
The Boundaries God Has Set
Because sexuality is powerful and good, God has placed boundaries around it for our protection and flourishing. The seventh commandment, “You shall not commit adultery” (Exodus 20:14), is just one expression of God’s broader concern for sexual purity. The New Testament expands on this, with Jesus teaching that lustful intentions violate the spirit of the command (Matthew 5:27-28).
Scripture consistently prohibits sexual activity outside of marriage. The Greek word porneia (πορνεία), often translated as “sexual immorality,” is a broad term covering all sexual activity outside the marriage covenant, including premarital sex, adultery, homosexual practice, and other deviations from God’s design. Paul writes in 1 Corinthians 6:18, “Flee from sexual immorality. Every other sin a person commits is outside the body, but the sexually immoral person sins against his own body.”
The prohibitions in Leviticus 18 and 20, which include homosexual practice, incest, and bestiality, are grounded not in arbitrary rules but in the creation order. These boundaries protect the goodness of sexuality by keeping it within its intended context.
Gender as God’s Gift
Gender, in the biblical understanding, is not separable from biological sex. The creation account knows nothing of a distinction between “sex” (biology) and “gender” (social construct or personal identity). When God created humanity male and female, this was a holistic creation of persons, body and soul together.
Throughout Scripture, men and women are addressed according to their biological sex, and expectations flow from this reality. While cultures differ in how masculinity and femininity are expressed in non-essential ways, the underlying reality of male and female is constant across time and place because it is rooted in creation, not culture.
This does not mean that every person fits perfectly into cultural stereotypes of what men or women “should” be like. There is great diversity in personality, gifting, and expression among both men and women. But this diversity exists within the fundamental categories of male and female, not outside them.
The Fall and Its Effects on Sexuality
Genesis 3 records the entrance of sin into the world, and sexuality was not left untouched. The immediate result of the Fall was shame: “Then the eyes of both were opened, and they knew that they were naked. And they sewed fig leaves together and made themselves loincoverings” (Genesis 3:7). What had been innocent and good was now tainted by guilt and self-consciousness.
The effects of the Fall on sexuality are pervasive. Lust, adultery, pornography, sexual abuse, confusion about identity, broken marriages, and every other sexual dysfunction can be traced back to this event. Our sexuality is broken along with every other aspect of our humanity.
Yet even in the midst of judgment, God shows grace. He provides coverings for Adam and Eve (Genesis 3:21), and he promises a Redeemer who will crush the serpent’s head (Genesis 3:15). The brokenness is not the final word.
Redemption and Sexual Ethics
The gospel offers hope for every kind of sinner, including sexual sinners. Paul writes to the Corinthians, some of whom had been involved in sexual immorality, idolatry, adultery, and homosexual practice: “And such were some of you. But you were washed, you were sanctified, you were justified in the name of the Lord Jesus Christ and by the Spirit of our God” (1 Corinthians 6:11).
Notice the past tense: “such were some of you.” The gospel brings genuine transformation. This does not mean that temptation disappears or that the struggle ceases, but it does mean that our identity is no longer defined by our sins or our temptations. We are defined by Christ.
For believers, sexual purity is not merely a rule to follow but a response to grace. Our bodies are temples of the Holy Spirit (1 Corinthians 6:19), and how we use them matters. Whether in singleness or marriage, we are called to glorify God in our bodies (1 Corinthians 6:20).
Compassion Without Compromise
How should the Church respond to those who struggle with sexual sin or confusion about their identity? The same way Jesus responded to sinners: with truth and grace together. Jesus never softened the demands of God’s law, but he also welcomed sinners, ate with them, and offered them forgiveness and transformation.
The Church must be a place where people can be honest about their struggles without fear of rejection, while also being a place where God’s standards are upheld without apology. This is not easy, but it is what faithfulness requires. We are not helping anyone by pretending that sin is not sin, nor are we helping anyone by treating sinners as enemies rather than as people in need of the same grace we have received.
Conclusion
The Bible teaches that sexuality and gender are gifts from God, rooted in creation, distorted by the Fall, and being redeemed through Christ. Male and female are not arbitrary categories but reflect God’s purposeful design for humanity. Sexual expression finds its proper place within the covenant of marriage between a man and a woman. The gospel offers forgiveness for past sexual sin and power for present obedience. As we navigate the confusion of our current moment, we do so with confidence in God’s Word and compassion for those who are lost in the darkness, knowing that the light of Christ can bring clarity and healing.
“So God created man in his own image, in the image of God he created him; male and female he created them.” Genesis 1:27
Bibliography
- Köstenberger, Andreas J. God, Marriage, and Family: Rebuilding the Biblical Foundation. Crossway, 2010.
- DeYoung, Kevin. What Does the Bible Really Teach about Homosexuality? Crossway, 2015.
- Sprinkle, Preston. Embodied: Transgender Identities, the Church, and What the Bible Has to Say. David C Cook, 2021.
- Heimbach, Daniel R. True Sexual Morality: Recovering Biblical Standards for a Culture in Crisis. Crossway, 2004.