Pastor Wagner has been an ordained minister of the Orthodox Presbyterian Church for 48 years, serving the Bayview congregation since 1983. He is a graduate of Westmont College (B.A., 1970) and Westminster Theological Seminary in Philadelphia (M.Div., 1973), and in 1998 was awarded a Doctorate of Ministry degree in preaching from Westminster Seminary in California. He is the author of Tongues Aflame: Learning to Preach from the Apostles and contributed several chapters on the doctrine of the church and Reformed church practice to the book Back to Basics: Rediscovering the Richness of the Reformed Faith. He has also written articles on pastoral and ecclesiastical subjects for the Journal of Pastoral Practice and Antithesis.