
'Understanding Biblical Adultery: A Christian Perspective on Marriage and Faithfulness'
Posted on 18 June 2026
Bible Adultery
Introduction
Adultery is a term often used to describe voluntary sexual activity between a married person and someone other than their spouse. In the Bible, adultery is explicitly forbidden by the seventh commandment: "You shall not commit adultery" (Exodus 20:14). The meaning of adultery was well understood at the time the commandment was given. Throughout scripture, there is consistent prohibition against adultery. In this article, we will explore the biblical perspective on adultery, its implications, and why it matters in the context of Christian faith.
The Original Pattern of Marriage
The Bible begins its teaching on marriage with the pattern established between Adam and Eve, where one man and one woman come together in a lifelong union ordained by God (Genesis 2:24, Mark 10:7–9). This model serves as the foundation for understanding marriage throughout scripture. Adultery, then, can be seen as an adulteration of this divine plan for marriage by introducing a third person into the relationship.
Circumventing the Prohibition
Despite the clarity of God's original design for marriage and the prohibition against adultery, sinful humanity has found ways to attempt to blur the lines of morality. One such way is through polygamy, where multiple wives are added to a marriage. While polygamy was allowed in the Old Testament, it was never endorsed by God. However, it was not considered adultery because the additional women were legally included in the marriage. In modern times, polygamy is generally illegal in most countries, preventing any legal addition of a third person to a marriage.
Another way that people have tried to circumvent the prohibition against adultery is through divorce and remarriage. If a married individual has an affair and then divorces their spouse to marry the other person, they may try to maintain their "legal" footing. However, Jesus makes it clear that divorce does not release one from the responsibility to be faithful to their original spouse. In Luke 16:18, Jesus states, "Anyone who divorces his wife and marries another woman commits adultery." Divorce does not circumvent the prohibition against adultery, and entering into a new marriage while the original spouse is still alive is considered adulterous.
The Heart of the Matter
Jesus takes the prohibition against adultery even further by addressing the issue of lust. In Matthew 5:27–28, he states, "You have heard that it was said, 'You shall not commit adultery.' But I tell you that anyone who looks at a woman lustfully has already committed adultery with her in his heart." Jesus emphasizes that even indulging in lustful thoughts is considered adultery in the eyes of God. This teaching avoids the need to define explicit boundaries of physical contact or sexual acts outside of marriage and instead focuses on the condition of one's heart.
Consequences of Adultery
The Bible contains strong warnings against committing adultery and highlights its serious consequences. Proverbs 6:32 states, "A man who commits adultery has no sense; whoever does so destroys himself." Adultery brings about God's judgment and negative consequences for individuals involved. It is a destructive act that harms not only the individuals involved but also their families and communities.
Forgiveness and Restoration
While living in unrepentant adultery indicates a lack of true faith in Christ, it is important to recognize that no sin is unforgivable. When a Christian repents, all sins can be forgiven through Christ's sacrifice. Similarly, when an unbeliever comes to faith in Christ, they too can experience forgiveness for their sins, including adultery. In 1 Corinthians 6:9–11, Paul writes to the Corinthian church, reminding them that some were former adulterers but had been washed clean, sanctified, and justified through faith in Jesus Christ.
Why This Matters
Understanding the biblical perspective on adultery is essential for Christians. It serves as a reminder of the high standard God sets for marriage and fidelity within relationships. Adultery is a serious offense that can lead to harm and destruction. By adhering to God's design for marriage and remaining faithful to our spouses, we can experience the blessings and fulfillment that come from living according to His plan.
Think About It
- Reflect on Jesus' teaching about lust as a form of adultery. How does this challenge your understanding of sexual purity?
- Consider the consequences of adultery highlighted in Proverbs 6. How does this passage emphasize the importance of faithfulness in marriage?
- How does the biblical perspective on forgiveness and restoration offer hope to those who have committed adultery or been affected by it?
- What practical steps can you take to guard your heart against lust and maintain fidelity within your own marriage or future relationships?
In conclusion, adultery is clearly prohibited in the Bible. It is considered an adulteration of God's original plan for marriage and brings about serious consequences. Understanding the biblical perspective on adultery helps Christians navigate their relationships with fidelity and seek forgiveness and restoration when needed. By honoring God's design for marriage, we can experience the blessings that come from living in obedience to His Word.
