A lifelong resident of the Archdiocese of Washington, Justin has taught theology and Spanish at his alma mater, Bishop McNamara High School in Forestville, Maryland, since 2006.

Justin has written widely on various aspects of the Catholic faith. His books include Called to Teach: Daily Inspiration for Catholic Educators, Called to Pray: Daily Prayers for Catholic Schools, The History of the Catholic Church (a textbook), and Alleluia to Amen: The Prayer Book for Catholic Parishes. Justin is active in pro-life ministries, and serves on the volunteer board of directors for the Forestville Pregnancy Center.

Justin holds an M.A. in Spanish Language and Culture from the Universidad de Salamanca (Spain), an M.A. in International History from Staffordshire University (England), and an M.A. in Theology and Christian Ministry from the Franciscan University of Steubenville. Justin has studied philosophy and theology at Seton Hall University, and Church history from the University of Notre Dame’s Satellite Theological Education Program, for whom he has likewise taught various online courses.

Justin, his wife Bernadette, and their children live in Bowie, Maryland, where they attend Sacred Heart Catholic Church. Justin is a lay member of the Order of Saint Dominic. You can follow him on Twitter (@JustinMcClainOP).