The Work of the Holy Spirit

Rev. Dr. Ian Hamilton is an Associate Minister in the Free Church of Scotland, an adjunct professor at Greenville Presbyterian Theological Seminary and Westminster Seminary, UK and serves as a trustee for GPTS. For many years he served on the board for the Banner of Truth Trust, and as Editor of the Magazine. He served as the minister of Loudoun Church of Scotland from 1979-1999 and as the minister of Cambridge Presbyterian Church from 1999-2016. He and his wife Joan have four children and six grandchildren.

Jonathan Master is a Teaching Elder in the Presbyterian Church in America and serves as President of Greenville Presbyterian Theological Seminary. He is a member of the Executive Council of the Gospel Reformation Network, Associate Editor of the Banner of Truth Magazine, and Chairman of the Board of The Paton Society. From 2012 to 2020, he served as Dean of the School of Divinity at Cairn University. His Ph.D. is from the University of Aberdeen and he has authored and edited a number of books, including, Reformed Theology, Growing in Grace, and You Must Be Born Again. He hosts a podcast entitled, Dead Presbyterians Society. He and his wife, Elizabeth, live in the Greenville area, and worship at Second Presbyterian Church. They have been blessed with two daughters.

Rev. Dr. Ryan McGraw (PhD, University of the Free State) serves as Morton H. Smith Professor of Systematic Theology. He has pastored churches in the PCA and OPC, and serves currently as Teacher at Covenant Community OPC, Taylors SC. 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). Aiming at the church more broadly, his passion has been to popularize devotional Trinitarian theology in numerous books such as 31 Meditations on the Trinity (RHB 2023) and What is Covenant Theology? (Crossway 2024). Editing and contributing to several journals, he and Joel Beeke are co-editors of the Cultivating Biblical Godliness series.

Dr. David Strain was born in Glasgow, Scotland. He holds degrees from Duncan Jordanstone College of Art, Trinity College Glasgow/School of Divinity, the Free Church of Scotland College in Edinburgh, and Reformed Theological Seminary in Jackson. He was ordained to the gospel ministry in the Free Church of Scotland in September 2003, and has held pastoral charges in London, England, and Columbus, MS. Since May 2013, David has served on the pastoral staff of First Presbyterian Church in Jackson and was installed as Senior Minister in May 2014.

Kevin DeYoung (b. 1977) is senior pastor of Christ Covenant Church in Matthews, North Carolina, and associate professor of systematic theology at Reformed Theological Seminary. A graduate of Hope College and Gordon-Conwell Theological Seminary, he also holds a Ph.D. in early modern history from the University of Leicester. DeYoung has written more than twenty books and frequently speaks and writes on theology and ministry; in 2025 he served as moderator of the Presbyterian Church in America General Assembly. He and his wife, Trisha, have nine children.

Stephen was ordained and installed as Westminster’s pastor in 2019. He was born and raised in Pasadena, Maryland and earned his BA in history from the University of Maryland University College. Stephen then moved to Greenville, South Carolina where he earned his Masters of Divinity from Greenville Presbyterian Theological Seminary (GPTS). In addition to weekly preaching, teaching, and visitation, Stephen’s writing has been featured on Reformation 21, Place for Truth, Heidelblog, MereOrthodoxy, and in Tabletalk Magazine. Together with friends he hosts several podcasts on the Westminster Standards ( The Shorter and Larger for Life podcasts) and is a General Council member of the Gospel Reformation Network (GRN). Stephen is also the author of “Loving the Law” a book from Christian Focus Publications on the three uses of the Moral Law, released in 2025. Stephen and his wife, Sarah, are high school sweethearts and have been married since 2013. They are proud parents to four beautiful children and consider the saints of Westminster an extension of their family.

Rev. Mark G. Johnston spent ten years in church planting helping to oversee the establishment of Trinity EPC, Richhill in Northern Ireland. He has also pastored in England, the United States, and Wales, and he is currently minister of Groomsport EPC in Northern Ireland. He serves on the board of the Banner of Truth Trust and is author of several books, including This World Is Not My Home: Reflections for Pilgrims on the Way and commentaries in the Let’s Study series on John, Colossians and Philemon, and 2 Peter and Jude.

Rev. Vinícius Pimentel is a minister in the Igreja Presbiteriana do Brasil and pastor of Igreja Presbiteriana Emanuel (IPE). He earned the Master of Divinity (M.Div.) from Greenville Presbyterian Theological Seminary in the United States, where he received theological training in the Reformed tradition. Before entering pastoral ministry, he studied and worked in the field of law, holding both a Bachelor of Laws and a Master’s degree in Law from the Universidade Federal de Pernambuco.

Rev. Dr. David Gilbert (DMin, Reformed Theological Seminary) is a native of Douglasville, GA. He came to Christ during his senior year at Clayton State University and soon discerned a call to the ministry. After earning his M.Div. from Reformed Theological Seminary in Jackson, MS, he was called to serve as Assistant Pastor of Second Presbyterian Church in Yazoo City, MS. He then served as Senior Pastor from 2007 until accepting the call to Grace Presbyterian in Douglasville. He serves as an Adjunct Professor of Preaching at GPTS. Pastor David and his wife, Michelle, have four daughters.