Aida Besancon Spencer is Professor of New Testament at Gordon-Conwell Theological Seminary and Extraordinary Lecturer of North-West University. Besides teaching, Dr. Spencer has worked as a Spanish community organizer and Presbyterian minister. She was born and reared in Santo Domingo, Dominican Republic. She is the author of twelve books and hundreds of articles including 2 Corinthians: Daily Bible Commentary and Paul's Literary Style: A Stylistic Comparison of II Corinthians 11:16-12:13, Romans 8:9-39, and Philippians 3:2-4:13.

Craig S. Keener (PhD, Duke University) is F. M. and Ada Professor of Biblical Studies at Asbury Theological Seminary. He is author of seventeen books, four of which have won major awards, more than seventy academic articles, several booklets, and more than one hundred fifty popular-level articles. One of his books, The IVP Bible Background Commentary: New Testament, now in a second edition, has sold more than half a million copies. His books include commentaries on Matthew, Romans, 1-2 Corinthians, Revelation, a two-volume on John and a four-volume commentary on Acts, plus a two-volume work on miracles, works about the Spirit, ethnic reconciliation, women in ministry, divorce and various other topics. Craig is the New Testament editor for a forthcoming NIV study Bible focused on Bible background. Craig is married to Dr. Medine Moussounga Keener, who was a refugee in her home country of Congo for eighteen months.