It seems from reading various messages that through time and today who people determine as the "ultimate Authority" changes depending on your point of view. And this seems true for all controversial issues.
Let me give you an example: women in leadership
One group would say, The scripture says women are to be silent in church, thus God has spoken through scripture and women aren't to be pastors.
Another group would say, There can be different interpretations of the rule on silence for women in church but the body of the Church has determined that women should not be Bishops.
A third group might say: it is evident that the spirit of God is working good works through this person, who are we to say no, when the Spirit says yes.
Personally I suppose I lean toward the third group. The book of Acts is a chronicle of how a group of Christians leaders who made up the church realized that scripture was not the end of the story. They knew that God had chosen Isreal and yet here was the Spirit in the Gentiles. So they changed, first trying to make the Gentiles into Jew and then recognizing that God was calling them as they were.
Another example is how recently our church had meetings over whether to give same-sex blessings. There was a great deal of heated debate over whether the church should be involved in such a thing. To me it seemed a strange conversation because if God is the one giving the blessings, then isn't God the one deciding who should and shouldn't recieve them? All the talk about whether these people should decide seemed to me as if they were trying to determine what God "should" be thinking before giving God the opportunity to act. Is that really the role of the church? As the Gamalio (sic) guy said when they were going to stone Steven, if it is of men, it will wither but if it is of God, who can (or should) stand against it?
Maybe the question should be, why does it matter so much in such cases that we not let time and God make the final decision?
But for those who see scripture as the answer or the church as the answer, enlighten me please.