WE can Debate all we like , but David was never rebuked for the act of taking another wife, but for taking someone elses wife. he was told to just ask and god would provide.
King Solomon had many many wives, but again never rebuked for having lots only rebuked for taking none Israeli wives.
Only scripture for saying one wife refers to Elders and Deakins, if it was meant for all it would have said so.
Paul actually also said it better to not marry at all.
Hope that one not enforced by law too
David and Solomon might not have been rebuked, but it doesn't mean God was pleased with what they were doing or that it was right.
Deuteronomy 17:17 says that a king shouldn't "multiply wives to himself, that his heart turn not away..."
Funny thing, we see that Solomon's many wives did that very thing...turned his heart away!
"For it came to pass, when Solomon was old, that his wives turned away his heart after other gods; and his heart was not perfect with Yahweh his God, as was the heart of David his father. For Solomon went after Ashtoreth the goddess of the Zidonians, and after Milcom the abomination of the Ammonites. And Solomon did evil in the sight of Yahweh, and went not fully after Yahweh..." 1 Kings 11:4-5
"And Yahweh was angry with Solomon because his heart was turned away from Yahweh God of Israel..." 1 Kings 11:9.
God tells Solomon that because he didn't keep His covenant or statues that He commanded, that He would
"...rend the kingdom from thee and give it to thy servant" 1 Kings 11:11
So while God may not have flat-out rebuked Solomon, He certainly wasn't happy that the man chose to go against His commands. God told them what would happen if they took multiple wives....and it happened. And when it happened to Solomon, he was punished for it.
In the NT, we're told in 1 Corinthians 7:2 that to avoid fornication, every man should have his own wife and every wife her own husband. There's no plural there. ONE wife. ONE husband.
Then there's Jesus, who said,
"Have you not read that he who created them from the beginning made them male and female, and said, 'Therefore a man shall leave his father and his mother and hold fast to his wife, and the two shall become one flesh'? So they are no longer two but one flesh. What therefore God has joined together, let not man separate." Matthew 19:4-6
Jesus said the man would leave his family and hold fast to his wife. Not wives. Not to mention the fact that he mentions TWO becoming one flesh. Not three, or four, or seven hundred. That was meant for
all of us, not just kings or deacons or elders.