This debate is "heating up" because of the battle over same-sex "marriage" - and some folks are saying the one of the problems with legalizing same-sex "marriage" is that it could lead to polygamy. (Reminds me of a joke my husband used to tell: Why does Bob Jones University forbid dancing? It could lead to sex standing up)
I have read in both blogs and their comments section that "homosexuality and polygamy are equal (sins).
(side note: 1 Cor. 6:9-10: Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived: neither the sexually immoral, nor idolaters, nor adulterers, nor men who practice homosexuality(**), nor thieves, nor the greedy, nor drunkards, nor revilers, nor swindlers will inherit the kingdom of God
**or Old Testament patriarchs
First: I am not "pro-polygamy" in the sense that I believe it's the right think for everybody.
I am not (NOT) pro-polygamy in the sense that it's what I want for myself.
I simply cannot call "sin" what Scripture does not call "sin." I'm happily (and truly) Reformed and the first Sola is "Sola Scriptura." Scripture is our only infallible rule of faith and conduct. We must not call evil...good. But we must also not call "sin" that which God does not call "sin."
Our Holy Father does not regulate "sin" - He forbids it.
Like all things, polygamy can (and is) abused, but if we call all things "sin" that some people abuse...we would not even be able to eat!
Our Holy Father does not describe Himself, even in metaphors, that portray Him as doing anything that is "sin.". Isaiah 3:6-10 gives us Jehovah and his wives, faithless Israel and treacherous Judah. I believe that polygamy, in and of itself, cannot be "sin" or Jehovah would have chosen a different metaphor.
Our Holy Father does not give us sinful things. in 2 Samuel 12 we read that Jehovah had delivered Saul's wives into David's arms. One can hardly say that polygamy made David commit adultery and kill Uriah! Greed and Lust did that.
God could have put an asterisk after the Leverite marriage law...but He didn't. The God who told His people not to wear cloth made out of blended linen and wool, could have told His people to take only one wife...but He didn't.
God didn't forbid business, He regulated it.
He didn't forbid marriage, He regulated it.
He didn't forbid polygamy, He regulated it.
If you want to make an argument that it leads to bad things (so does parenthood, if you ask Abel,) that's fine. But that's not the argument I see being made.
If you want to make an argument that in the New Testament, leaders are forbidden to have more than one wife, that's fine. But that's not the argument I see being made.
Don't call "sin" that which God does not call "sin."