The Bible presents us a series of virtues and ethic guidelines, trough metaphores. It's not historic fact, but merely an allegory of theologic thinking. The Bible tells us the ethic standards which Christianity and Jesus present. The goal is to be a more humane person and to improve the quality of humanity. The main person of the Bible is leftwing (Jesus), but it were always the rightwing people who were the most religious, and who leaded the religion (The Church).

I believe there are many gradations to follow the Bible.
You can really live your life according to it (= Ned Flanders )
You can get some ethical guidelines from it, and ignore the somewhat fascist passages. I heard there are some passages that say that if 2 men have sex together they should be killed.
Or you just want to enjoy a good novel, written in a nice literature style.