What Does The Bible Say About Infidelity


The Bible is one of the most revered texts in human history and religions throughout the globe have given it the utmost respect. People from all walks of life turn to the Bible for guidance in times of trouble and to reassure themselves of their moral stances. Infidelity, being one of the Ten Commandments of the Bible, is a perfect example of this.

What the Bible Says

The Bible clearly states, as one of the Ten Commandments, “Thou shalt not commit adultery,” indicating that promoting fidelity is a cornerstone of the Christian faith and any kind of infidelity should be avoided (Exodus 20:14). In the New Testament, this is further underscored by the Apostle Paul’s admonition in the book of Corinthians: “Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous” (Hebrews 13:4). Taken together, the Bible’s position is clear: fidelity and loyalty between spouses is expected and anything that hinders or threatens that bond is strongly frowned upon.

Repercussions of Infidelity

The Bible also makes clear that the consequences of infidelity can be far reaching and severe. In the Old Testament book of Genesis, for example, it details the story of Abraham and Sarah, who faced tremendous trials and tribulations after Sarah asked her husband to bear a child with her servant, Hagar, to produce an heir (Genesis 16:1-3). Through this story and countless others, it becomes evident that adultery, and by extension any form of infidelity, stands to compromise the foundation of a happy and healthy marriage.

Examples of Biblical Fidelity

In contrast to these dire consequences of unfaithfulness, the Bible also presents stories of examples of fidelity that serve as a reminder to us all of what marriage patterns to look like. Numerous times, Jesus reiterates his commitment to the covenant of matrimony, often using the phrase “what God has joined together let no man take apart” (Mark 10:9). In the book of Proverbs, it is further said, “A virtuous woman is a crown to her husband: but she that maketh ashamed is as rottenness in his bones” (Proverbs 12:4). This serves to remind us that fidelity is an honorable trait appreciated in relationships.

Forgiveness and Second Chances

Though the Bible can understandably seem unforgiving of those who commit adultery, it is important to note that it also offers forgiveness and second chances. In the book of Kings, for example, the prophet Nathan forgives David for his indiscretions, firmly reminding him of his obligations to his faith and his commitment to a life of purity and virtue (2 Samuel 12:13). Furthermore, the Gospel encourages sinners to seek repentance and reconciliation with their spouse, if it is still possible (Matthew 18:21-22).

Foundations of a Happy Marriage

In essence, the Bible promotes and supports a foundation for a happy, fulfilling and successful marriage that is filled with love, trust, and mutual respect. Indeed, the Bible does not merely preach the avoidance of forbidden love, but instead it encourages spouses to cultivate and nurture those things which make relationships thrive, such as patience and kindness. In the Bible, these principles are expressed in Ephesians 5:22-30, which states “husbands should love their wives as they love their own bodies, and that wives should respect their husbands.”

The Need for Patience and Respect

The Bible implores spouses to not only be faithful but also to have patience and forgiveness with one another. In the book of James, it is written that “with perseverance a person can find peace in times of trials” (James 1:2). This emphasizes the importance of remaining faithful and patient within any marriage, regardless of its challenges. Additionally, it is often referred to in the Bible that a marriage should be grounded in respect. This is perhaps best articulated in Colossians 3:18-19 which says, “wives should be submissive to their husbands, and husbands should love their wives and never be harsh with them.”

The Need for Communication

It is not just respect and patience that the Bible speaks about but it also stresses the need for open, honest, and constructive communication within a marriage. Apostle Peter notes in the Bible, “be completely humble and gentle; be patient, bearing with one another in love” (Ephesians 4:2). Furthermore, it is articulated in Colossians 4:6 to “speak words that build others up, and do not tear them down.” In other words, regular communication between spouses is critical in order to maintain and improve their bond.

The Significance of Love in a Marriage

The Bible reiterates the significance of love in a marriage, something that Jesus spoke about on various occasions. In the book of Matthew, Jesus places a special emphasis on faithfulness and devotion, stating “a man shall leave his father and mother and be united to his wife and the two will become one flesh” (Matthew 19:5). Likewise, in the book of Corinthians it is expressed that love “does not dishonor others, it is not self-seeking and is not easily angered” (1 Corinthians 13:5). Clearly from these passages, unconditional love is a key component of marriage.

Recognizing When You Need to Seek Help

Despite signposts of wisdom present in scripture, sometimes relationships and marriages can still start to struggle. At such times, it is important to recognize when a professional counselor or therapist may be needed and not hesitate to seek help. Professional support can be a great aid in helping to navigate through difficult times, getting couples to a place of better understanding and solidarity.


The Bible is a great source of insight and guidance on many areas, including that of fidelity within a marriage. Its teachings prove to be timeless and inspirational, laying a foundation in which couples can nurture and care for one another. As long as spouses remember to be respectful, patient and loving towards each other, then a strong marriage can remain. Ultimately, if we uphold the standards of fidelity described in the Bible, then we can ensure the security and sanctuary of marriage.

Marcos Reyna is a Christian author and speaker. He is dedicated to helping create disciples of Christ through spreading the power of the gospel to others. He has written several books and articles on a variety of theological topics, including matters of faith, worship, biblical studies, practical ethics, and social justice. A trained theologian and devotee of spiritual writing, Marcos has a mission to spread Christian love everywhere. He lives with his family in Nashville, TN where he spends his days encouraging others to seek Christ's grace in all things.

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