Klyne Snodgrass (PhD, University of St. Andrews) is professor of biblical literature and holder of the Paul W. Brandel Chair of New Testament Studies at North Park Theological Seminary.

Karen Lee-Thorp was a senior editor at NavPress for many years and series editor for the LifeChange Bible study series. She is now a freelance writer living in Brea, California, with her husband, Greg Herr, and their daughters, Megan and Marissa.

Karen H. Jobes (PhD, Westminister Theological Seminary) is the Gerald F. Hawthorne Professor Emerita of New Testament Greek and Exegesis at Wheaton College and Graduate school in Wheaton, Illinois. The author of several works, she has also been involved in the NIV Bible translation. She and her husband, Forrest, live in Philadelphia and are members of an Evangelical Presbyterian Church.