Most protestants are unaware that they are actually siding with the Roman Catholic Church in this matter of doctrine.
The same self appointed authority that "thought to change times and laws" changed the sabath from the 7th day to the first....and also claimed to have authority over marriages .. ..by power of fear of retribution.
Before the Council at Trent there were matters in the church that people did not agree on. So they made a "political" of sorts (church politics) ruling to settle things and it was then "politically incorrect" for a man of faith to have more than one wife.
Here is what they said about marriage.
View attachment 8403
In case you missed it. This was when the church first inserted itself formally and arrogantly into the business of marriage....AND also decided IT could redefine the parameters that YHWH had given. Too big for their britches me thinks!
Just a bit of history for those who might be interested.