Have you read Jack Spong? He's a retired Episcopalian Bishop who has written several books on how to interpret the Bible for modern times and using modern historical evidence. He believes Jesus was the adopted Son of God, that the real miracle was his life and his teachings, and that we should not be shackled to the more barbaric interpretations of the past. He is a champion of a liberal, progressive Christianity; and receives regular death threats from Fundamentalists. Every book he's written that I've read I enjoyed immensely.

http://johnshelbyspong.com/about-bishop-spong/