What does the Bible say about infidelity
Infidelity is one of the deepest wounds a couple can go through. The Bible clearly calls it sin, but it also speaks of forgiveness, restoration, and the dignity of the one who was betrayed.
1. God calls for faithfulness in marriage
Faithfulness is at the heart of the Ten Commandments, and the New Testament affirms it again: marriage should be honored by both spouses.
Thou shalt not commit adultery. (Exodus 20:14, KJV)
Marriage is honourable in all, and the bed undefiled: but whoremongers and adulterers God will judge. (Hebrews 13:4, KJV)
2. Jesus also speaks about the heart
Jesus taught that unfaithfulness does not begin with the act, but in the heart and in what we choose to look at. That is why the Bible invites us to guard our thoughts and boundaries before a temptation grows.
Ye have heard that it was said by them of old time, Thou shalt not commit adultery: but I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart. (Matthew 5:27-28, KJV)
3. Infidelity wounds deeply
The Bible does not minimize the damage: it describes adultery as something that destroys the one who commits it and breaks trust. Jesus mentions it as the exception in which the betrayed spouse may separate (Matthew 19:9). Christian traditions interpret that exception somewhat differently, so it is wise to seek pastoral counsel in your own church.
But whoso committeth adultery with a woman lacketh understanding: he that doeth it destroyeth his own soul. (Proverbs 6:32, KJV)
4. There is forgiveness for those who repent
David committed adultery and later wrote Psalm 51, a prayer of sincere repentance. God does not turn away anyone who acknowledges their sin and returns to Him.
Create in me a clean heart, O God; and renew a right spirit within me. (Psalms 51:10, KJV)
5. Restoration is possible, but not required
In the book of Hosea, God uses the story of a restored marriage to show His faithful love. Many couples rebuild trust with time, real repentance, and help from a counselor. Forgiving does not mean pretending it did not happen or accepting any situation: if there is abuse or danger, safety comes first. Seeking pastoral or professional help is a wise step.
Then said the LORD unto me, Go yet, love a woman beloved of her friend, yet an adulteress, according to the love of the LORD toward the children of Israel, who look to other gods, and love flagons of wine. (Hosea 3:1, KJV)
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