Personally, I reject the command of Deuteronomy 21 that a disodedient son should be stoned to death by the elders of the city. I think that whoever wrote that one down didn’t quite hear God right. Also, I don’t believe that a faithful Christian has to drink poison, handle snakes during worship, or speak in tongues. It just doesn’t strike me as rational that we get closer to God by making women stay quiet in church, by ingesting poison, or by saying “Shamalamadingdongshakedjiboutitofuttilalalalaburgulatida”. Likewise, I don’t believe that God really commands genital mutilation. And most Christians through the ages have not seized upon these particular practices as essential to Christianity, though a few have insisted that these are requisite signs of a true faith.
Where should a Christian look to for authority? The Bible alone? For about the first 1500 years of Christianity, there were no printing presses, and virtually everyone was illiterate. Study of the Bible was primarily reserved to a tiny contingent of monks/scribes, since most people couldn’t afford a handwritten Bible or spend the time it would take to learn to read. Then, people started translating the Bible into all sorts of languages, and more people began to quarrel about what it all meant.
One possible answer to this quandary is the “Wesleyan Quadrilateral”, which says that the four sources of authority in Christianity are scripture, reason, experience, and tradition. Any of these sources is easily abused if not scrutinized in light of the other three. None of the four sources stands alone. When Scripture is judged in terms of reason, experience, and tradition, we are less likely to fall into the traps of fundamentalism, where spirituality is traded in for a feeling of security. When Scripture is judged in terms of reason, experience, and tradition, we can find the spiritually valuable portion and separate it from all the crap about how God wanted the Israelites to massacre the Jebusites, Amorites, Amalekites, Moabites, Edomites, Dust Mites, etc.
Reason = the rational critical judgment of the individual, which might include some reference to modern scientific or literary theory
Experience = the experiences of the individual, which help contextualize the meaningfulness of the theological concept, make it concrete (remember that Jesus spoke in parables that were tailored to contextualize theological concepts in the experiences of typical first century A.D. peasants who lived in that part of the world)
Tradition = ways that Christians over the years have interpreted a given theological concept or biblical passage (some traditions are perverse, while others are illuminating, an overview of church history gives some perspective as to the proud and not-so-proud moments)