I. Howard Marshall (1934–2015) was professor emeritus of New Testament exegesis and honorary research professor at the University of Aberdeen, Scotland. His many books include New Testament Theology: Many Witnesses, One Gospel and Beyond the Bible: Moving from Scripture to Theology.
Cornelis Bennema teaches New Testament studies at the London School of Theology. His publications include A Theory of Character in New Testament Narrative, Encountering Jesus: Character Studies in the Gospel of John, Mimesis in the Johannine Literature, and Imitation in Early Christianity:Mimesis and Religious-Ethical Formation.
Volker Rabens is research scholar of the Käte Hamburger Kolleg "Dynamics in the History of Religions" and lecturer in New Testament at Bochum University, Germany. His publications include The Holy Spirit and Ethics in Paul.