Is it still adultery if one or both of you is not married?
If my partner cheated on me when we were dating or engaged but not actually married, is it still adultery to God?
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Strictly speaking, no. Adultery in the Bible means sexual unfaithfulness involving at least one married person… but sexual immorality of any kind is sin, and so is deceit, and cheating on someone you’ve promised yourself to is both.
I was on the receiving end of something similar before I got married. The word didn’t change anything, it hurt and it was wrong either way.
If neither person is married then ‘adultery’ isn’t the right biblical term… still sexual sin though, and it breaks the honesty an engagement is supposed to be built on.
What matters is repentance, full truth and changed behavior. Forgiving is the Christian thing to do but staying together is a separate question.
No. If neither of you is married it isn’t adultery, the Bible uses that word for sex that breaks up an existing marriage.
Engagement is a different story though! Joseph was ready to divorce Mary before they ever lived together (Matthew 1)… a broken promise to be faithful still matters to God.
In Matthew 1, Jewish betrothal was legally binding in a way a modern engagement isn’t. That’s why Joseph had to think about divorce.
That backs up the idea that a pledged commitment matters. I’d be careful about treating every modern engagement like biblical betrothal.
The deceit part. That’s what actually wounds people most, we get too hung up on the label.
The months of him looking me in the eye and lying. That’s what wrecked my trust going forward, the physical part was bad but that…
Spent way too long trying to figure out the ‘correct’ label for what happened to me and the technical definition didn’t make my stomach hurt any less.
Whatever terminology you do, what do you think Jesus would tell you?
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Scripture names both sexual immorality and deceit as sin, because a broken promise wounds deeply, whether or not we call it adultery.
I think Jesus would look past the label. In Matthew 5 He said lust in the heart is already adultery.
For the one betrayed, He’d sit with you. He knew a friend’s kiss of betrayal Himself.
Forgiveness can grow slowly, but trust is separate and it’s okay if that one takes many seasons or never grows back with this person at all.
If your partner was sleeping with you before marriage, that’s fornication too, and it’s on both of you, not just the person they cheated with.
What they did was wrong and you have every right to be hurt, but bring your part of it to God too so you’ve got a clean slate whatever you decide about the relationship.
Matthew 5:28, even looking at someone with lust is ‘adultery in the heart’ and Jesus didn’t limit that to married people. So yes, I’d still see it as adultery in God’s eyes.
I’m sorry you’re dealing with this.
‘Fornication’ is the word you want… in the KJV it usually translates the Greek porneia, which covers sexual immorality in general, including sex between unmarried people. That’s why newer translations say ‘sexual immorality.’
‘Adultery’ (moicheia) is the narrower term. It specifically means cheating on a spouse.
Were you two sleeping together while you were dating? If so, that was fornication in God’s eyes, cheating or not.
Grieve the betrayal, but fight your side of the line too.
Don’t let anyone tell you it’s no big deal that your partner stepped out while you were committed to each other. My husband and I have been married 13 years, my parents 37, and all of us expected faithfulness long before the wedding.
Something was already wrong before your partner went behind your back. Sex belongs inside marriage and when both people are single the word for it is fornication (porneia in Greek).
When my fiancée told me she’d been seeing someone else I spent weeks going through commentaries looking for biblical grounds. We weren’t married, so the only question was whether she was someone I could build a covenant with.
If the person your partner cheated with was married, that part is adultery.
Engagement means you’ve already given your word to one person and God hears that promise before there’s ever a ceremony. It hurts the soul just as much.
I’ve seen friends carry it for years.
I used to firmly believe ‘strictly speaking, no.’ No ring, no adultery. Then I sat with Matthew 5:27-28, where Jesus takes the adultery commandment and applies it to what’s going on in someone’s heart.
He didn’t seem interested in technicalities that let people off the hook. I still think the dictionary answer is probably no, but I think God is looking at the heart.