Michael J. Kruger (Ph.D. University of Edinburgh) is Professor of New Testament at Reformed Theological Seminary, Charlotte, NC and is the author of the Gospel of the Savior: An Analysis of P.Oxy. 840 and its Place in the Gospel Traditions of Early Christianity (Brill, 2005) and co-author of Gospel Fragments (Oxford, 2009).
Charles E. Hill (Ph.D. Cambridge University) is Professor of New Testament at Reformed Theological Seminary in Orlando, Florida. His other books include Regnum Caelorum: Patterns of Future Hope in Early Christianity and The Johannine Corpus in the Early Church, both published by Oxford University Press, and From the Lost Teaching of Polycarp: Identifying Irenaeus' Apostolic Presbyter and the Author of ad Diognetum published by J. C. B. Mohr (Paul Siebeck).