"I've never heard of anything quite like this," said one of the evangelical authors, Craig Evans, a New Testament scholar at Acadia Divinity College in Nova Scotia. "The usual scenario is that a dubious or extreme book comes out, then a 'correction' appears one to two years later."
The collaboration speaks to Ehrman's marquee attraction — his past five books for HarperOne have sold a combined 750,000 copies — and to the expectation that his newest title will receive widespread attention. Ehrman is a former Christian fundamentalist who spurned his faith and has devoted his academic career to debunking long-held assumptions of traditional Christian belief, making him a persona non grata for some Christians and an object of fascination for others.
"His standing is such that, whether you agree with him or not, you have to come to terms with his scholarship," said Roger Freet, executive editor of HarperOne. "This book in particular goes to the most fundamental question of the Christian faith."
Ehrman makes the provocative assertion that Jesus did not consider himself divine but was deified by his followers, and that early believers scattered clues about their all-too-human myth-making throughout the New Testament.
Ehrman sets out to pinpoint when the process of deification took place in different Christian communities. He contends that early Christians had conflicting views of Jesus' divinity, none of which would pass the exacting salvation standard of the Middle Ages.
"I've never, ever written a book that, in my opinion, is as important as this one, since the historical issues are of immense, almost incalculable importance," Ehrman said. "The assertion that Jesus is God is arguably the single most important development in Western civilization."
Word of the book's imminent publication has already mobilized evangelical bloggers and commentators. Even before Ehrman's book was issued Tuesday, Texas minister Mike Robinson rushed out his own, unauthorized counterattack: "How Jesus Became God in the Flesh: The Proper Exaltation of a Jewish Prophet from Nazareth; Bart Ehrman Refuted."
Ehrman, a New Testament professor at the University of North Carolina at Chapel Hill, said "How Jesus Became God" is unlike any other book he's written for a lay audience. In his other nonscholarly books, Ehrman repackaged the academic research of other scholars in an accessible format.
But while working on this book, Ehrman arrived at a dramatic about-face on fundamental issues relating to the Christian religion. Ehrman had previously assumed that the deification of Jesus did not take place until some six decades after his Crucifixion, around the years 90 or 95.
Ehrman now acknowledges that Jesus' followers — the inner circle who knew him personally — came to believe he was divine almost immediately after they became convinced of his Resurrection, a historical revision that moves up the timeline by several generations.
"This wasn't just a kind of mind game, trying to figure out ideas of theology — it had much broader implications," Ehrman said. "Among other things, it affected not only their worship but also their civic lives, since they were insisting that it was Jesus, not the Roman emperor, who was the Son of God. This did not put them in good stead with their pagan friends, families and neighbors, not to mention the ruling authorities."
Consequently, Ehrman had to reassess his understanding of the Gospel authors and now acknowledges they, too, considered Jesus to be divine. He now thinks the writer of Mark's Gospel believed God glorified Jesus at his baptism. Meanwhile, the Gospel writers of Matthew and Luke thought Jesus was born divine.
Ehrman sees the Gospel of John, which traces the divine origins of Jesus all the way back to the beginning of creation, as belonging to a category unto itself. In this Gospel, Jesus makes overt and explicit statements about his own divinity.
When it comes to John's Gospel, Ehrman and some of his evangelical critics agree: The fourth Gospel should be understood as a theological treatise and an imaginative re-enactment, not an eyewitness account containing verbatim quotes.