William Edgar (BA, Harvard University, MDiv, Westminster Theological Seminary, DTh, Université de Genève) is professor of apologetics at Westminster Theological Seminary, Philadelphia. He directs the gospel-jazz band Renewal, which features the legendary singer Ruth Naomi Floyd. He is also currently professeur associé at the Faculté Jean Calvin, Aix-en-Provence (France). He has published more than 20 books and numerous articles in French and in English. His most recent book is A Supreme Love: The Music of Jazz and the Hope of the Gospel (IVP Academic, 2022). He and his wife, Barbara, have two children and three grandchildren.