William C. Placher (1948-2008) was Charles D. and Elizabeth S. LaFollette Distinguished Professor in the Humanities and Chair of the Department of Philosophy and Religion at Wabash College in Crawfordsville, Indiana, and the author of such classic works as A History of Christian Theology and Jesus the Savior.
Derek R. Nelson is Associate Professor of Religion at Wabash College in Crawfordsville, Indiana. He is the author of Sin: A Guide for the Perplexed and What's Wrong with Sin and coauthor of A History of Christian Theology, Second Edition, published by Westminster John Knox Press.