by Roger E. Olson
I proudly consider myself an evangelical Christian theologian, but some commentators on evangelicalism probably do not consider me that. I recently wrote a chapter on the subject for a forthcoming edited volume on evangelicalism to be published in 2011 by Zondervan. There I argue that “evangelical” is an essentially contested concept without boundaries. In other words, contrary to many commentators, I do not believe “evangelical” is a bounded-set category.
Evangelicalism is a movement marked by certain common characteristics or family resemblances. Movements, by their very nature, cannot have boundaries. As soon as they have boundaries they are no longer movements but organizations. Movements are centered-set categories. Other examples from religion are “charismatic,” “New Age” and “fundamentalist.” These, like evangelicalism, have no headquarters, no magisterium (controlling authority) and no definite membership.
