·미국 Andover Newton Theological School(B.D.) ·미국 Yale University(Ph.D.) ·전, Union Theological Seminary 신약학 교수 [저서] ·History and Theology in the Fourth Gospel (Westminster John Knox Press, 2003) ·The Gospel of John in Christian History: Essay for Interpreters (Wipf and Stock Publishers, 2004) 외 다수