Koo Dong Yun is Professor of Systematic Theology at Bethany University in Scotts Valley, California. He is the author of Baptism in the Holy Spirit: An Ecumenical Theology of Spiri...view moreKoo Dong Yun is Professor of Systematic Theology at Bethany University in Scotts Valley, California. He is the author of Baptism in the Holy Spirit: An Ecumenical Theology of Spirit Baptism (2003).view less