Ronald P. Hesselgrave (MDiv, PhD) is a retired missionary and educator. He has taught at Trinity International University (Deerfield, Illinois), Alliance Theological Seminary and Nyack College (Nyack, New York), and Rutgers University. Prior to retirement, he served for seventeen years as a home-based missionary, most recently as an education/resources coordinator and member of the Marginal Mission Network of EFCA ReachGlobal/Europe. He has authored four other books in the areas of Christian theology, ethics, and mission.