You Need to Know Geerhardus Vos (Interview with Danny Olinger) Rev. Danny E. Olinger Who is Geerhardus Vos and what drew you to him? Geerhardus Vos (1862-1949) is rightly considered the “Father of Reformed Biblical Theology.” Princeton Theological Seminary established a chair in biblical theology in 1893 and sought Vos to fill it. He accepted the invitation and would serve for thirty-nine years ..