You said you don’t understand this verse — that honesty is a good place to begin. Matthew 5:31–32 sits in the Sermon on the Mount where Jesus calls us back to the Creator’s intention for marriage. In his culture, a man could dismiss his wife with a written certificate (Deut. 24), and Jesus here tightens the standard: divorce was never meant to be casual. The exception he names — commonly translated “except on the ground of sexual immorality” (porneia) — is usually understood as serious sexual unfaithfulness that breaks the marriage covenant.
Jesus’ stark language — that a man who divorces his wife except for that cause makes her commit adultery, and that whoever marries a divorced woman commits adultery — is both legal and pastoral. He is warning against using divorce as a tool of convenience or cruelty and exposing the painful consequences for the vulnerable spouse. His words uphold the permanence and holiness of the one-flesh bond, while also acknowledging that covenant-breaking sin like sexual betrayal fractures that bond in a way that can justify separation.
Practically, this means a few things for confused or hurting people: first, reconciliation and restoration should be pursued where possible, with repentance and wise pastoral help. Second, when sexual betrayal has occurred, separation may be a painful but legitimate boundary; the church should pastor such cases with truth, compassion, and careful counsel rather than judgmental slogans. Third, for anyone living with guilt over divorce or remarriage, Jesus’ gospel offers forgiveness — adultery and divorce are not beyond the reach of his grace if there is true repentance and dependence on him.
If you’re carrying confusion, hurt, or fear about what this passage means for your life, bring it to Christ and to a trusted shepherding community. He calls us to faithfulness but meets repentant sinners with mercy and the power to live differently. Seek reconciliation where possible, shelter and wise counsel when needed, and rest in the grace of the One who heals broken marriages and broken hearts — you are not beyond his redeeming love.