The Ren's Speaking Engagements Notice: JavaScript is required for this content. RICHARD S. PARK Dr. Richard S. Park is assistant professor of theology and ethics at Vanguard University. Please click here for further information. JOHN MARRIOTT Dr. John Marriott serves as adjunct professor of Philosophy and Intercultural Studies at Biola University. Please click here for further information. SARAH RENEE Sarah Renee is a historian, teacher, apologist, speaker, and writer. Please click here for further information.
