Dr Leong is the Research Coordinator of Malaysia Campus Crusade for Christ. He is also Adjunct Lecturer of Seminari Theologi Malaysia and the East Asia School of Theology (Singapore). He has a B.E. (Hons) in Civil Engineering from the University of Malaya, an M.A. in Old Testament Studies from Wheaton College, an M.A. and Ph.D. in Near Eastern Languages and Cultures from University of California, Los Angeles. He worships at the Beacon Presbyterian Centre in Kepong.