Go Tell It on the Mountain

If you are religious, or ever have been, read this book. It's the story of a pentecostal family and their relationship with our good friend Human Nature. The conflict between onset righteousness brought on by experiences of religious euphoria and our tendency to act on our base desires is richly and fairly represented on both sides of the spectrum. The fluid way the story spans places and generations and the biblical rhythm it's in told in draws you in and holds your attention. It is layered enough to easily merit re-reading.