Albert Haase, O.F.M. (Ph.D., Fordham University; M.Div., Catholic Theological Union), is a preacher, retreat leader and spiritual director based in the Chicago area. He serves as the director of the International Institute for Clergy Formation (Seton Hall University). He has also taught as an adjunct professor of spirituality at Catholic Theological Union in Chicago, Illinois, and offers training in spiritual direction for the Diocese of Peoria, Illinois. He is the cohost of a weekly radio show on the Relevant Radio network, and a former missionary to mainland China.
M. Robert Mulholland Jr. (1936-2015) was emeritus professor of New Testament at Asbury Theological Seminary and the author of several books, including , , and the landmark spiritual formation book . He also served as pastor of Shirley Community Church in Shirley Mills, Maine. During his extensive academic career, Mulholland served as adjunct professor at the Academy for Spiritual Formation and taught at several seminaries and universities around the world, including Wesley Theological Seminary, Harvard University, McMurry University, Moscow Evangelical Christian Seminary (Moscow, Russia), West Africa Theological Seminary (Lagos, Nigeria) and Baltic Mission Center Theological Seminary (Tallinn, Estonia). An elder in the Kentucky Conference of the United Methodist Church, Mulholland was a frequent speaker at Bible and spiritual renewal conferences. He and his wife, Lynn, have two children.