"But if the unbelieving partner separates, let it be so. In such cases the brother or the sister is not enslaved. God has called you to peace."
— 1 Corinthians 7:15
Quick Answer
Scripture identifies two recognized grounds for biblical divorce: sexual immorality or adultery, which breaks the marriage covenant (Matthew 19:9), and abandonment by an unbelieving spouse who refuses to remain married (1 Corinthians 7:15). Many pastors also apply these principles to cases of severe abuse, though Scripture does not list every hardship explicitly.
Why Grounds Matter
Not every reason for wanting a divorce is a biblical reason for pursuing one. Scripture provides real, if narrow, categories under which divorce is permitted, and knowing them helps believers pursue faithfulness rather than simply following their feelings when a marriage becomes difficult. This is not about minimizing pain but about seeking God’s wisdom in an incredibly weighty decision.
Knowing these grounds also protects couples from two opposite errors: divorcing too easily over ordinary hardship, or staying trapped in a mistaken sense of obligation when God has actually provided a legitimate way forward.
It also helps to understand why Scripture names only these categories rather than offering an exhaustive list. Both grounds share a common thread: each represents a fundamental breach of the marriage covenant by one party, not merely dissatisfaction or difficulty experienced by both. Sexual immorality breaks the exclusivity marriage requires; abandonment breaks the shared commitment marriage requires. Recognizing that underlying logic helps believers apply Scripture's principles wisely to situations the text does not name explicitly.
Ground One: Sexual Immorality
Jesus names the first ground clearly: “whoever divorces his wife, except for sexual immorality, and marries another, commits adultery” (Matthew 19:9). This refers to persistent, unrepentant sexual sin — adultery or similarly severe sexual betrayal — that fundamentally breaks the marriage covenant’s exclusivity. The wronged spouse is given the option to divorce, though reconciliation, where genuine repentance occurs, remains the preferred outcome.
The Greek word Jesus uses here, porneia, is broad, covering sexual immorality generally rather than adultery alone, which is why many interpreters apply this ground to other severe sexual betrayals within marriage as well, not adultery in the narrowest sense only.
Ground Two: Abandonment by an Unbeliever
Paul names a second ground in his instructions to the Corinthian church: “if the unbelieving partner separates, let it be so. In such cases the brother or sister is not enslaved” (1 Corinthians 7:15). When an unbelieving spouse deserts the marriage and refuses to remain, the believing spouse is released from the obligation to hold the marriage together alone.
This ground assumes real, permanent desertion, not a temporary separation during a difficult season. Paul's concern throughout this passage is that believers not feel shackled indefinitely to a spouse who has already, in practice, ended the marriage.
What About Abuse and Other Hard Situations?
Scripture does not list every painful circumstance explicitly, but many conservative theologians reason that severe, ongoing physical abuse or endangerment falls under similar principles — such abuse fundamentally breaks the covenant of protective, sacrificial love a marriage is meant to embody, and no biblical text requires a spouse to remain in a home where their safety or their children’s safety is at serious risk (see also Exodus 21:10-11, which protected a wife’s basic provisions and care).
This reasoning follows the underlying logic of both recognized grounds: covenant-breaking behavior that fundamentally undermines the marriage relationship releases the endangered spouse from an obligation to remain, even where Scripture does not spell out every specific scenario by name.
What Is Not a Recognized Ground
Incompatibility, growing apart, financial stress, or simply falling out of love are common modern reasons for divorce, but they are not biblical grounds. These are real struggles worth taking seriously through counseling, prayer, and hard work — but Scripture calls couples to pursue reconciliation and perseverance in the ordinary difficulties of married life rather than treating unhappiness itself as sufficient cause to divorce.
Many marriages that felt hopeless at one point have been restored through counseling, patience, and God's grace, precisely because the couple chose to fight for the marriage rather than treat difficulty itself as sufficient grounds to walk away.
This is not because God is indifferent to real suffering within an unhappy marriage. It is because he knows, better than we do, that many marriages written off as hopeless can be rebuilt through humility, forgiveness, and sustained effort, and he calls couples to that harder, often more rewarding road before concluding that a marriage cannot be saved.
Seeking Wise, Pastoral Counsel
Because these situations are rarely simple, anyone facing a potential divorce should seek the counsel of a mature pastor or biblical counselor who can help apply these principles carefully to their specific situation, rather than navigating such a weighty decision alone.
A wise counselor can help you discern whether your situation fits within these biblical categories, help you pursue reconciliation where appropriate, and walk with you through the practical and spiritual weight of the decision either way.
Above all, remember that God is not distant from you in this process. He knows the full weight of what you are carrying, and he offers wisdom generously to those who ask him in faith (James 1:5), even in the middle of decisions this difficult and consequential.
Take heart that many believers who have walked this same road, wrestling honestly with these grounds and seeking godly counsel, have come through it with a clear conscience before God, whether their path led toward reconciliation or toward a biblically grounded divorce.