Also, considering that the bible is the big book of multiple choice, I have seen christians justify everything from slavery, rape, abortion, and then turn around and support gay rights, the idea of no hell, and an all benevolent god.
They pick and choose to suit their needs.
The bible may not be the ONLY source, but for many christians, it is a major one, at least when it comes to justifying their morals.
Either one is convinced of a proposition, or one is not. choice doesnt enter into it.
One can choose to ACT as if they believe something, or act in such a way to delude themselves until they become convinced, but the actual belief is not subject to choice.
If you disagree, please, elaborate on a belief that you can specifically choose.
Again, no, it's not. They have their moral values and then dig through the bible to find parts that can be interpreted in a manner that supports their views. They use the bible as a defense mechanism and a cop out from rational thought. They don't use it as a source for their moral values. Christians would abhor the real morals in the bible.
and I am not saying that they derive ALL of their morals from the book, but they do derive some from it.
The moral stance on homosexuality in christianity is derived specifically from the book, for example.
Listen, you have no argument that christians are confused on their morality, and that its a clusterfuck to try to sort through. But people's morals are derived from several different sources, and for many christians, the bible is one of those sources.