Fascinating and illuminating book that is both scholarly with some elements of the personal in which Borg chronicles his own evolving Christianity and relationship with Jesus as well as teaching the lessons of his 30 years of work and study as a Biblical scholar. Ultimately, Borg offers an extremely useful and informative book both looking at how beliefs and understandings of who Jesus was have been in a constant state of change since his death, but also of how a historical/metaphorical reading of Jesus and the Bible can open the door to a deeply meaningful religious experience and Christianity. That believing in Jesus's literal divinity/resurrection isn't the necessary litmus test to being Christian.
In this book, he unpacks what we know of Jesus as a man, a teacher of "alternative wisdom," that challenged the conventional wisdom of the age (and still challenges it) and that he was a not just a wisdom teacher, but the "Wisdom of God," Sophia (the gendered FEMALE personification of God's wisdom. That he didn't need to be the literal son of God (and, indeed, Borg unpacks how little shows that Jesus ever thought he was - as part of this, he unpacks how the book of John in the Bible is non-literal speech of Jesus), but rather Jesus spoke and taught of a deeply personal relationship he had with God, that others could seek as well. In that, Jesus was a "highly spiritual person," for whom God was an experiential reality.
I would do a disservice trying to paraphrase Borg's book here, because his ideas and arguments build on one another, with lots of examples and backing for his claims. The ultimate lesson though, from Borg, is that reading and understanding Jesus in this historical and metaphorical way, in no way diminishes his power or in the believer's Christianity. This is, I'm sure, a way of understanding Jesus that is heretical to many fundamentalists, but it is a way of understanding Jesus that can be powerful for other Christians, and a way toward "being transform[ed] into more and more compassionate beings, 'into the likeness of Christ.'" (136)
However, while this is in no way an attempt to reconstruct the research and arguments of this book, here are a few excerpts to give a taste for the book:
"rather than being the exclusive revelation of God, [Jesus] is one of many mediators of the sacred," (37) --- i.e. this understanding allows you to a Christian pluralist, i.e. all the worlds Buddhists, Muslims, Jews, atheists, etc., aren't going to hell because they were raised non-Christians. There are many ways to approach God, and Jesus and Christianity is one of those very real, and very valid, ways.
In this type of understanding, "Christian life moves beyond believing in God to being in a relationship to God." (39)
On the Bible and Bible stories:
"Since they were originally oral stories, we should not think of them as the set pieces we have in the gospels, recited word for word." (86)
And that the reason and power of pursuing a relationship with God through Jesus is that: "A relationship with God leads from anxiety to a life of peace and trust. It leads from bondage of self-protection to the freedom of self-forgetfullness. It leads from life centered in culture to life centered in God." (88)
He concludes with this statement that: "Belief did not originally mean believing in a set of doctrines or teaching; in both Greek and Latin its roots mean to 'give one's heart to.' The 'heart' is the self at its deepest level. Believing, therefore, does not consist of giving one's mental assent to something, but involves a much deeper level of one's self. Believing in Jesus does not mean believing doctrines about him. Rather, it means to give one's heart, one's self at its deepest level, to the post-Easter Jesus who is the living Lord, the side of God turned toward us, the face of God, the Lord who is also the Spirit." (137)
And also that: "It is an image of the Christian life not primarily as believing or being good but as a relationship with God. That relationship does not leave us unchanged but transforms us into more and more compassionate beings, 'into the likeness of Christ.'" (136)
So, in a lot of ways, Borg articulates a Christianity that is unlike the one in which fundamentalist believe in. I wish every fundamentalist would read this book, not that they would all open their minds to the arguments here, or agree with all of them, but that they should at least open their minds to these ideas, because ultimately, regardless of your approach, Christianity should turn one towards compassion and love. And likewise, I wish non-Christians read this to understand that while the fundamentalist creationists are the public face of Christianity in the media, they do not represent, or even begin to touch, the fullness, depth and breadth of what it can mean to be a Christian.