Ajith Fernando (ThM, DD) served for thirty-five years as the National Director of Youth for Christ in Sri Lanka and now serves as its Teaching Director.  He is a Bible expositor with a worldwide ministry. Ajith studied at Asbury Theological Seminary and Fuller Seminary and spends much of his time mentoring and counseling Christian workers.  He is a visiting lecturer at Colombo 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 of New Testament Greek and Exegesis at Wheaton College and Graduate school in Wheaton, Illinois. The author of several works, she is also involed in Bible translation. She and her husband, Forrest, are members of Immanuel Presbyerian Church, an EPC church in Warrenville, Illinois.