Ian Hamilton served as minister of Cambridge Presbyterian Church, England, and before that of Loudoun Church of Scotland, Ayrshire. Currently he is president of Westminster Presbyterian Theological Seminary, England; teaches at Greenville Presbyterian Theological Seminary; and serves on the board of the Banner of Truth Trust. He is married to Joan, and together they have four children and five granddaughters. He has written a number of books, including The Erosion of Calvinist Orthodoxy, The Letters of John, Ephesians, and The Faith Shaped Life.