The Holy Spirit
Dr. Ryan McGraw (PhD, University of the Free State) serves as Morton H. Smith Professor of Systematic Theology at Greenville Presbyterian Theological Seminary.
He is a former pastor of First OPC Sunnyvale. His academic books include works on John Owen (V&R 2014; Palgrave 2017), Reformed Scholasticism (T&T Clark 2020), and Charles Hodge (V&R 2023).