Kenneth Berding (PhD, Westminster Theological Seminary) is a professor of New Testament at Talbot School of Theology at Biola University and an elder at Redemption Hill Church in Whittier, California. He is the author of numerous books and articles, and he regularly blogs at Kindle Afresh and The Good Book Blog.

Keith R. Krell (PhD, University of Bristol) has 30 years of ministry experience, which most recently includes serving as senior pastor at Crossroads Bible Church in Bellevue, Washington and professor of biblical exposition at Moody Bible Institute, Spokane. Keith is coauthor of Paul and Money and has contributed to several other books.