Sinclair B. Ferguson is a guest lecturer for the Doctor of Ministry program at The Master's Seminary. He is a native of Scotland and earned his Ph.D. at the University of Aberdeen. He was minister of two churches in Scotland, on the Island of Unst the most northerly of the Shetland Isles, and in St George’s-Tron, in the center of Glasgow, as well as serving in the USA at First Presbyterian Church, Columbia, S.C.