"Particularly galling to conservative Christian critics is that Love Wins is not an attack from outside the walls of the Evangelical city but a mutiny from within — a rebellion led by a charismatic, popular and savvy pastor with a following. Is [Rob] Bell's Christianity — less judgmental, more fluid, open to questioning the most ancient of assumptions — on an inexorable rise? 'I have long wondered if there is a massive shift coming in what it means to be a Christian,' Bell says. 'Something new is in the air.'"

Read more: Jon Meacham, TIME