Bart Ehrman is a boogeyman some evangelicals like to hate. Ehrman consistently takes positions that undercut Christian orthodoxy, and his scholarly positions often lead you to believe that most of what you have heard in sermons and all of what you have heard in Sunday School is erroneous. That is where he believes the evidence leads, and like any scholar, he wants to convince his students.
That said, it is unfair to Ehrman and his scholarship to dismiss him out of hand or make him a heel. He is a human being, a hard working scholar, and an engaging communicator. This is why each time Ehrman publishes a book like his last release, How Jesus Became God: The Exaltation of a Jewish Preacher from Galilee, evangelical scholars respond in print or in lectures. He deserves to be answered fairly and with good scholarship.
In How God Became Jesus: The Real Origins of Belief in Jesus' Divine Nature---A Response to Bart Ehrman, Michael F. Bird, Craig A. Evans, Simon J. Gathercole, Charles E. Hill, and Chris Tilling respond to Ehrman's How Jesus Became God. On short notice, this team of scholars offered their rebuttals to Ehrman's presentation of the historical Jesus. Their work offers an apologetic, or defense of Christian doctrine. And I think it is well done.
I am not current enough in New Testament history to provide a wholesale evaluation of the arguments of Bird, Evans, Gathercole, Hill, and Tilling in this volume, but I am familiar enough with the biblical material and a broad enough range of scholarly research on the New Testament to approve and recommend this collection of essays. How God Became Jesus addresses the key questions raised by Ehrman concerning first century Jewish cosmology, Jesus' self-perception (Did Jesus understand himself to be God?), the evidence pertaining to Jesus' burial, the beliefs of the first Christ-followers, problematic elements within Ehrman's interpretive categories and his exegesis of Scripture, and the implications for our understanding of the formation of a bounded, exclusive community centered on Christ (as well as the emergence of heterodox groups).
This book is a helpful companion to Ehrman's How Jesus Became God for those seeking to evaluate his arguments, or for those seeking to become conversant with Ehrman from an evangelical perspective.
I heard Bart Ehrman speak in Lawrence, Kansas several years ago, right after his publication of God's Problem, an examination of Job and what theologians call theodicy. He's engaging, a good storyteller, witty, and clear. I am also familiar with his written works. I happen to disagree with him. Often.
I disagree with Ehrman not only because I am Christian who believes the historic teachings concerning the incarnation, the resurrection of Jesus, the inspiration and authority of Scripture, and other core doctrines are reliable and true. I also disagree with Ehrman because I find his arguments unconvincing and his methodology suspect. Whenever I have read Ehrman's works or listened to his presentations, I have thought something is amiss. Admittedly, I have also had a very different existential experience concerning God--I am a Christian. Ehrman is an agnostic. Of course we will disagree.
Scholarly fads come and go. Whenever a book is published claiming a new or never-before-told version of the life of Jesus, or a supposedly revelatory account of the ancient evidence that undercuts established orthodoxy, it will receive buzz. These books will be placed on end caps in every bookstore. They will sell. People enjoy controversy, and gravitate toward conspiracy theories.
In those instances, it will be up to responsible Christian scholars, and responsible Christians, to listen to the arguments, examine the evidence, and offer a measured, accurate, and winsome response. How God Became Jesus assists those who wish to offer an evangelical perspective on the historical Jesus, and to do so as respectfully as possible.