Paul Gardner (PhD, Cambridge University) taught for seven years at Oak Hill, an Anglican Seminary in London, after his ordination. He then moved to parish ministry in Cheshire. Following a time as Archdeacon of Exeter, in 2005 he moved to become senior pastor of ChristChurch Presbyterian, Atlanta, USA. Now retired to the UK, he travels widely, teaching in Africa and South America. He has published a number of books and articles, including commentaries on Ephesians, 1 and 2 Peter, Jude, and Revelation.

Clinton E. Arnold (PhD, University of Aberdeen) is research professor of New Testament at Talbot School of Theology, Biola University in La Mirada, California. He has authored many books and commentaries, including Ephesians in the Zondervan Exegetical Commentary series and Acts in the Zondervan Illustrated Bible Backgrounds Commentary.