Gayle Gerber Koontz (Ph.D., Boston University) is professor of theology and ethics at Anabaptist Mennonite Biblical Seminary. Among her many published essays is "Unity with Integrity: John H. Yoder's Ecumenical Theology and Practice," which appeared in the 2010 book Radical Ecumenicity: Pursuing Unity and Continuity after John Howard Yoder (edited by John C. Nugent).