TIMOTHY MATTHEW SLEMMONS is Associate Professor of Homiletics and Worship at the University of Dubuque Theological Seminary. In addition to Year D: A Quadrennial Supplement to the Revised Common Lectionary (2012), he is the author of Groans of the Spirit: Homiletical Dialectics in an Age of Confusion (2010), and the 4-volume series, Liturgical Elements for Reformed Worship.