The NT plainly talks about how leaders must be the husband of ONE WIFE.
Old Testament: Deut. 17:17: 17 He must not take many wives...
Besides Solomon, what OT book listed by his name was a polygamist?
Moses is offered up as the author of the first 5 books...was Moses a polygamist? (No)
Your argument comes down to a few like David & Solomon...and if you're thinking that Solomon's 1,000 combined concubines & wives was somehow common, think again.
David is usually the main "complex" one to sort out.
Some of his "wives" were actually concubines inherited along with everything else the new "king" inherited.
One of his wives, Michal, was taken away from him. Bathsheba was "unionized" via sheer adultery...not exactly exemplary as some sort of "model" to be followed.
All of this still doesn't explain ALL of his wives; but you are the one asserting "many"...
So beyond those few, who are your "many?"
Old Testament: Deut. 17:17: 17 He must not take many wives...
But do you think that any one was only allowed one horse?
We could argue all day about what the exact meaning of 17:17 is.
I don,t know of any scripture that expressly forbids polygamy, as it does homosexuality.
Although there are no books written by Abraham or Jacob there would be no way of even knowing where the tribes of Israel came from with out some one writing about them
Abraham,s name is given as an example of what faith means in the NT.
There are most likely many other names that the Apostles could have used but they Chose to use his name because he was highly honored.
Jesus was a Jew or called a Jew, he was the founder of the Christian faith, not religion. he was a descendent of Abraham.
Isaiah 41
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But you, Israel, are my servant, Jacob whom I have chosen, the seed of Abraham my friend.
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You whom I have taken from the ends of the earth, and called you from the chief men thereof, and said to you, You are my servant; I have chosen you, and not cast you away.
Abraham was called the friend of God and Jacob was the father of the nation of Israel Abram had a concubine plus his wife.
Jacob had two wive,s and two concubines and while i do not use them nor Solomon or any one else as any proof that any one should have more than one wife or even has a right to more than one it is not an Abomination as some would have us believe.
Because if it were, Abraham and Jacob would not have been upheld by the very God that we believe in.