Sister Genevieve Glen, OSB, is a nun of the contemplative Benedictine monastery of St. Walburga, where she has taught in the formation program and conducted retreats in the retreat house. She has also given retreats in many Benedictine monasteries of women and men. She is a poet, hymn text writer and essayist who contributes regularly to Give Us This Day. She co-authored the 2016 issue of Waiting in Joyful Hope with Jerome Kodell, OSB, and is the author of Not by Bread Alone 2017, Waiting in Joyful Hope 2018-19; and Sauntering Through Scripture: A Book of Reflections (2018) published by Liturgical Press.Susan K. Wood, SCL, is chair of the department of theology at Marquette University. Active in ecumenical work, she serves on the U.S. Lutheran–Roman Catholic Dialogue, the U.S. Roman Catholic–Orthodox Theological Consultation, the conversation between the Roman Catholic Church and the Baptist World Alliance, and the International Lutheran–Roman Catholic Dialogue. She is an associate editor of Pro Ecclesia and serves on the editorial advisory board of the journal Ecclesiology. She is the author of Sacramental Orders (2000), and editor of Ordering the Baptismal Priesthood: Theologies of Lay and Ordained Ministry (2003) both published by Liturgical Press. Monsignor Kevin W. Irwin has been on the faculty of The Catholic University of America for over thirty years, where he held the Walter J. Schmitz Chair of Liturgical Studies (2000–2015), served as Dean of the School of Theology and Religious Studies (2005–2011), and is currently an Ordinary Research Professor. Msgr. Irwin has published eighteen books on liturgy and sacraments.