@shortstories I think it's weird to say outright that the Bible forbids polygamy. But I can see how they got there.
It shows examples of it, but doesn't condone it outright. It shows negative consequences of it, I suppose. It does say that overseers should be the husband of one wife, but that is a specific context (an overseer / shepherd). Peter seems to have only had one wife, and none of the early church Scriptures address how to handle your "multiple wives" in relation to each other.
@N_Y_SparkyOxCable
John Macarthur reads about a story or historical event in Genesis 2 and makes up rules from it when other books are full of actual rules
He seems to feel he can just read a story and then make up whatever rule he wants that is not stated in the story and that is why he is a heretic and he will do this not just to the Bible but to all texts he reads
He is like a judge who goes by the rulings of other judges instead of the actual text of laws even when a law is available