Pagels, Elaine Adam, Eve , and the Serpent (1988) 22 years old, yet still relevant. Pagels recounts the early history of the Church in terms of Genesis 1-4, and the evolving interpretations of these still crucial chapters of the Bible. Initially, the Gospel was understood as proclaiming the liberty of human beings, a liberty that not only enabled but required autonomous moral choice, instead of unthinking acceptance of social mores, one's place in society, and subjection to the ruling authority. That is how Paul's claim that Jesus' sacrifice fulfilled the Law was understood. There was no Fall; Genesis recounted Adam and Eve's choice as an affirmation of free will, and incidentally as an example of what not to choose, not as the sin that condemned us all.
After Constantine made Christianity the State religion, the story was reinterpreted as describing the origin of sin. More than that: the story demonstrated that human beings after Adam are incapable of freely choosing to act morally. Human nature was corrupted; humans no longer had free will. Augustine was instrumental in this change in doctrine (his Confession shows why: he was a sex addict, and believed his experience of uncontrollable lust was universal.) The doctrine of original sin and corrupted human nature seems to be almost entirely Augustine's invention. Why it should have had such a profound and long-lasting influence is IMO clear: it justified the exercise of coercive power, political and ecclesiastical. If human beings were tainted from birth, were incapable of choosing the right path, then coercion was necessary to keep them from acting on their evil impulses. Not to impose the rule of law would be an dereliction of the ruler's duty. The question of how the ruler escaped the taint and was capable of making ethical choices for his subjects seems not to have occurred to Augustine and his followers.
The Protestant Reformation did not change this gloomy view of human nature; if anything, it reinforced it. The doctrine of original sin is central to Luther's teaching that only faith can reconcile you to God, and furthermore that faith is a gift. One of the first things I learned was that "I cannot by my own reason or strength come to Jesus." (Significantly enough, Luther was an Augustinian monk.) The dissenting churches' leaders reserved to themselves the same power to demand assent to their doctrines as did the Roman church. Thoreau's famous opening sentence of Civil Disobedience is a direct descendant of Augustine's view. But Thoreau's essay implies that human nature could change, that we are capable of working our way towards an ethical and moral autonomy that will reduce and perhaps eventually eliminate the need for secular government.
Pagels knows that her work could be used to justify some claim to re-establish an original or "pure" Christianity. (Indeed, many sects have justified such claims by reference to just this same knowledge.) She carefully explains as much of the diversity of opinion, teaching, and practice as she can, and in an epilogue explicitly warns against believing that a single, pure, and unadulterated version of Christian belief is possible. I agree. More: I think that knowing about the early history of the church should make us wary of claiming exclusive or special grace, and should make us willing to accept testimony that differs from our own experience. Augustine's narcissistic argument for his doctrines is a bad model. Not that I'm expecting any such reformation of Christian (or other) belief any time soon. People seem to have great difficulty accepting that other people may be so different that they seem like alien beings. Scipio said Nullam humanum mihi alienum puto, I deem nothing human alien to me. A saying we should take to heart.
Pagels writes well. She has a knack for explication, for the arrangement of facts to clarify her analysis. Her book is thoroughly researched, with numerous notes in every paragraph referring the reader to original works (and translations), as well as other scholars' discussions. Recommended for anyone who wants to know more about the history of the church. ****