John S. Kloppenborg is Professor of Religion at the University of Toronto, Canada. He is well-known for his ground-breaking work on the Sayings Gospel Q. His most recent publication is Excavating Q: The History and Setting of the Sayings Gospel. He is currently writing a commentary on James for the Hermeneia series.
Joseph Verheyden is Professor of New Testament Studies at the University of Leuven, Belgium. He has recently edited The Figure of Solomon in Jewish, Christian and Islamic Tradition: King, Sage and Architect (2013) and (with J.W. van Henten), Early Christian Ethics in Interaction with Jewish and Greco-Roman Contexts (2013).