He has been teaching at Talbot School of Theology since 2002, and his previous experience includes teachings at the Spanish Bible Institute and Theological Seminary from 1996-2002, and he has taught as an adjunct professor at North Park University and North Park Theological Seminary, Trinity Evangelical Divinity School, and the University of Illinois. Dr. Williams was general editor for a series of theological books in Spanish, Coleccion Teologica Contemporanea. He has written a number of articles for Journal of Higher Criticism, Agenda Teologica, and Trinity Journal.