John Bishop is Emeritus Professor of Philosophy at the University of Auckland, where he held a Chair in Philosophy from 1993 to 2021. He is the author of Natural Agency (1989) and Believing by Faith (Clarendon Press, 2007). In recent years, he has collaborated with Ken Perszyk as co-author of several journal articles and book chapters on the problem of evil and the concept of God.
Ken Perszyk is Associate Professor of Philosophy at the University of Waikato and Academic Director at its Tauranga campus. He taught previously at Victoria University of Wellington, where for eleven years he was Head of the School of History, Philosophy, Political Science, and International Relations. He is the editor of Molinism: The Contemporary Debate (Oxford University Press, 2011), and author of Nonexistent Objects: Meinong and Contemporary Philosophy
(1993). Many of his sole- and co-authored journal articles and book chapters have focused on the problem of evil and the concept of God.