Now I suppose that behind this question is Matthew and 19:9.Those are the two exception clauses in the New Testament: "If a man divorces a woman, except for _____ [the Greek word here is is sometimes translated as "unchastity," or "immorality." It means most naturally "fornication," which is why I have this bizarre interpretation that very few people follow.But though Scriptures are filled with foundational life-changing truths, there are still some topics that are left untouched when it comes to finding a biblical perspective.In fact, I have to chuckle to myself whenever someone asks me to give a “biblical” perspective on dating.And he did that because Joseph and Mary were in that situation in Matthew, which is the book in which these exception clauses occur.At least Joseph thought Mary was in that situation, and so he was going to put her away and not marry her, because he was a just man and didn't want to marry. That's my radical, crazy, conservative, narrow, hard-nosed, very needed view in our divorce-happy culture.
They are extremely important questions, because if all of us will be held accountable for our actions by God someday that has huge implications.
Later on, in the New Testament, when Jesus was asked about divorce, He replied that Moses gave permission to divorce because of the hardness of their hearts. Jesus continued: "Haven't you read that at the beginning the Creator 'made them male and female,' and said, "For this reason a man will leave his father and mother and be united to his wife, and the two will become one flesh? Therefore what God has joined together, let man not separate" (Matthew 19:4-6).
Before God, marriage is a lifetime relationship that should never be severed by human action.
And Jesus is saying, "I don't have that situation in mind when I forbid divorce."So I don't think there is an exception for adultery in the New Testament.
But, even if you leave aside all that I have just said here, go to Ephesians 5 where it says, "Husbands love your wives as Christ loved the church."Well, has the church ever committed adultery? So, how a Christian husband can say to a penitent adultery-committing wife, "You did it, and that breaks it!