No. Adultery occurs when a married person has sex with someone other than their spouse. Adultery is a sin, but polygamy is not (although it was never part of God’s original design for marriage).
Is it adultery to have multiple wives?
Related answers
- Why was polygamy tolerated in the OT when God’s original design was obviously monogamy?
- What should you do when you love someone else’s spouse?
- Why can a man no longer have two wives?
- Can you commit adultery by marrying a divorced person?
- Would God use a child being born out of adultery as punishment for your sin and not forgive you?
