Father Paul J. Keller, O.P., is a member of the Dominican Province of St. Joseph. He has served as past president of the Society for Catholic Liturgy. He is a parochial vicar at St. Patrick Church in Columbus, OH, and interim director of divine worship for the Diocese of Columbus. He has previously taught in colleges and seminaries and is the author of several books, including A Year with the Eucharist: Daily Meditations on the Blessed Sacrament (Saint Benedict Press, 2018).