How do you deal with people that disagree with you theologically?
There seem to be several avenues people take in trying to find a basis of authority on which they stake their beliefs.
This isn't a new phenomenon. Martin Luther said that there were a certain group of preachers of his day who confuse their own spirit with the Holy Spirit: “they think they have swallowed the Holy Ghost feathers and all.” John Calvin warned “the fanaticism which discards the scripture, under the pretense of resorting to immediate revelations is subversive of every principle in Christianity. For when they boast extravagantly of the Spirit the tendency is always to bury the word of God so they can make room for their own falsehood.” Archetypes: John Spong, Joseph Smith and just about any neo-montanist on TBN.
These approaches can be combined, and I would dare say that all of us do that very thing - inconsistently shuffling the bases of our belief.
I think the right track is to take a Me and the Church approach. When Jesus called his apostles to himself, he didn't just bring one - he brought twelve. He established a community in which his power, his authority, his doctrine would continue. We do well to read our Bibles with the whole Church catholic. The Word gives life to the Community, and the Community reiterates the Word in the World.
Without this necessary balance, we fall to the idols of self or society, and are not conformed to the Saviour.
Image h/t Naked Pastor