A Pilgrim People: Becoming a Catholic Peace Church. Collegeville, MN: Liturgical Press, 2019.
Co-editor, with Margaret Pfeil, Sharing Peace: Mennonites and Catholics in Conversation. Forward by Msgr John A. Radano. Collegeville, MN: Liturgical Press, 2013.
Unlearning Protestantism: Sustaining Christian Community in an Unstable Age. Grand Rapids, MI: Brazos Press, 2010.
Editor and lead author. Just Policing, not War: An Alternative Response to World Violence. With Drew Christiansen, S.J., Ivan Kauffman, John Paul Lederach, Reina C. Neufeldt, Margaret R. Pfeil, Glen H. Stassen, and Tobias Winright. Collegeville, MN: Liturgical Press, 2007.
Co-editor, with Duane K. Friesen. At Peace and Unafraid: Public Order, Security and the Wisdom of the Cross. Scottdale, Pa.: Herald Press, 2005.
General editor of abridged edition. Called Together to be Peacemakers: Report of the International Dialogue Between the Catholic Church and Mennonite World Conference, 1998–2003. Abridged edition with discussion questions. Eds Willard Roth and Gerald W. Schlabach. With an introduction by Helumt Harder. Discussion questions by Eric Massanari. Bridgefolk Series, no. 3. Kitchener, Ont.: Pandora Press, 2004.
Editor. On Baptism: Mennonite-Catholic Theological Colloquium, 2001-2002. The
Bridgefolk Series. Kitchener, Ont.: Pandora Press, 2004.
For the Joy Set Before Us: Augustine and Self-Denying Love (Notre Dame, IN: University of Notre Dame Press, 2001).
Translator. Roger Arnaldez, Three Messengers for One God [Trois messagers pour un seul Dieu (Paris: Editions Albin Michel, 1983)]. With Mary Louise Gude and David Burrell. Notre Dame: University of Notre Dame Press, 1995.
To Bless All Peoples: Serving With Abraham and Jesus. Peace and Justice Series 12. Scottdale, Pa.: Herald Press, 1991.
Spanish translation: Un pueblo para todos los pueblos: la comunidad abrahámica y el servicio cristiano. Colección: Siervos en comunidad. Guatemala: Ediciones CLARASEMILLA, 1994.
Co-editor, with Phil McManus. Relentless Persistence: Nonviolent Action in Latin America. With an introduction by Leonardo Boff. Philadelphia: New Society Publishers, 1991.
And Who is My Neighbor? Poverty, Privilege and the Gospel of Christ. Scottdale, Pa.: Herald Press, 1990.