I am not a theologian. I tend to want to speak of Things Biblical in Terms Biblical. Where I miss the mark, feel free to point, utter a high-pitched "HA-HA" and call me a hypocrite.
I'll forgive you.
A majority of the problems extant in The Church at the Beginning of the 21st Century arise from NOT using the native terminology of the Scriptures, that is, we introduce extra-Biblical words and concepts in our argume...er, discussions.
The classic fool's errand of arguing God's Omni-whatever is rendered meaningless when we choose to speak in the Scripture's terms, rather than importing foreign philosophical language and concepts.
The current rage is discussing the Actual Biblical Sanction of Polygamy.
Sorry, can't find "Polygamy" in the Bible. Use Bible terms to discuss Bible things. You don't discuss Monopoly using the rules of Blackjack.
Start with Adam and Eve, One man, one woman.
Genesis 2:24, "Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh."
The New Testament, Jesus quotes Adam as authoritative:
Matthew 19:3-6, "The Pharisees also came unto him, tempting him, and saying unto him, Is it lawful for a man to put away his wife for every cause? And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female, And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh? Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder."
You see, if we follow the Biblical pattern, you either have marriage, or marriage plus adultery.
One is good, more is bad.
We have dealt personally with a promulgator of multiple wives. The Dread Dormomoo has done an exhaustive study of the issue...not all of which has been yet posted. Here is the link.
Enjoy. And speak as God's Word speaks.