He is a New Testament scholar at Calvin Theological Seminary in Grand Rapids, Michigan.
degree from Fuller Theological Seminary and a Ph.D. in New Testament Studies at King's College, Aberdeen University, Scotland, working under I. Howard Marshall.
After 25 years at Wheaton College, he moved in 2017 to Calvin Theological Seminary in Grand Rapids, Michigan, USA.
[6] His Whose Land, Whose Promise: What Christians Are Not Being Told About Israel and the Palestinians (2003, revised 2013) was his first book in this area.
This is based on his recent work on the integration of psychology with faculty career development.