According to scripture, what is a valid reason for divorce?

In scripture, adultery is recognized as a valid reason for divorce, particularly as referenced in the teachings found in both the Old and New Testaments. In the Gospel of Matthew, Jesus speaks to the sanctity of marriage and addresses the issue of marital unfaithfulness, stating that adultery is a significant breach of the marital covenant that can justify divorce. This reflects the understanding that marriage is not merely a legal or social contract, but a sacred union that involves fidelity and trust between partners.

The other reasons mentioned, such as financial disagreements, loss of interest, or communication difficulties, while they may be significant issues in a marriage, do not carry the same scriptural weight as adultery. These issues can often be worked through with counseling, support, or mediation, but they do not constitute a biblical basis for divorce. Adultery, however, breaks the fundamental trust and commitment of the marriage relationship, thereby warranting a different level of response according to biblical teachings.