David Lyle Jeffrey is Emeritus Distinguished Professor of Literature and the Humanities at Baylor University. Jeffrey earned his PhD from Princeton University and is also the author or editor of many books, including The King James Bible and the World It Made and We Were a Peculiar People Once: Confessions of an Old-Time Baptist.

Robert C. Roberts is Distinguished Professor of Ethics, Emeritus, at Baylor University (philosophy). He works primarily in moral psychology, with special attention to the role of emotions in moral and spiritual character. His latest book is Recovering Christian Character: The Psychological Wisdom of Søren Kierkegaard.