Earlier quoted context omitted.
Polygamy is a Christian institution. It was pointedly prescribed in the old testament. Modern anti-polygamists will argue that the old testament prescription was a matter of necessity, and that new testament language (particularly Paul's) prescribes monogamy, but to my eyes the new testament's position is pretty casual, while the old testament's is quite strong.
I think that's the wrong argument to make. There were a lot of things said in the Old Testament that aren't considered by most Christians to be applicable to them. The "Old Covenant" was, as the Jewish maintain today, between God and the Jews. For most Christians (more specifically, Catholics and several other groups), the laws in the Old Testament ceased to be valid when Jesus proclaimed the way into Heaven. That sa…
Those Christians may have a bit of a quarrel with Jesus himself:
Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil. For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled. Matthew 5:17-18
One of the most important verses in the bible. It holds the tension between the judgement brought by the Old Covenant on the one hand, and our salvation and freedom in Christ on the other. Although its complexities are rightly subject to debate, there's simply no room to claim that the entire Old Convenant is invalid in Christian theology.
> "appealing to biblical authority is fraught with oppositions that focus on the numerous inconsistencies in the bible."
Amen to that.