Here is what Marcus Borg has to say on the pre-Easter Jesus versus the post-Easter Jesus. This comes from a December 12 posting in the Newsweek/Washington Post online column "On Faith":
I see the pre-Easter Jesus as a Jewish mystic who knew God, and who as a result became a healer, wisdom teacher, and prophet of the kingdom of God. The latter led to his being killed by the authorities who ruled his world. But I do not think he proclaimed or taught an extraordinary status for himself. The message of the pre-Easter Jesus was about God and the kingdom of God, and not about himself.
Rather, I see the grand statements about Jesus – that he is the Son of God, the Light of the World, and so forth - as the testimony of the early Christian movement. These are neither objectively true statements about Jesus nor, for example in this season, about his conception and birth. To speak of him as the Son of God does not mean that he was conceived by God and had no biological human father. Rather, this is the post-Easter conviction of his followers.