Dr. Thomas became Senior Minister at The First Presbyterian Church of Columbia: Columbia, South Carolina on August 11, 2013. He originally joined the staff in 2011, coming from Jackson, MS, where he was Chairman of the Theology Department at Reformed Theological Seminary and Minister of Teaching at First Presbyterian Church. He is from Wales. He is a graduate of the University of Wales (Bc.S), Reformed Theological Seminary (M.Div), and University of Wales/Lampeter (Ph.D.). He was ordained in the Evangelical Church of Ireland, where he served Stranmillis Evangelical Presbyterian Church in Belfast for 17 years before going to Mississippi. He is the Robert Strong Professor of Systematic and Practical Theology at RTS Atlanta and is Editorial Director, Alliance of Confessing Evangelicals. He is also a well published author.
He is married to Rosemary. They have two grown children, one granddaughter, and one grandson