Rev. Ian Hamilton serves as minister of Cambridge Presbyterian Church. He is a trustee of Banner of Truth and a board member of Greenville Presbyterian Theological Seminary (GPTS) and London Theological Seminary. He is an Adjunct Professor at GPTS and the author of The Erosion of Calvinist Orthodoxy: Drifting from the Truth in Confessional Scottish Churches, The Letters of John, John Calvin’s Doctrine of Holy Scripture, and The Faith Shaped Life.