Rev. Dr. Paul Detterman is a church musician, composer, and author with advanced degrees in church music, biblical studies, and liturgical theology. An ordained teaching elder in the Presbyterian Church (USA), Paul has served as director of music or pastor over four decades as well as serving as associate for worship on the PCUSA national staff and as executive director of Presbyterians for Renewal and The Fellowship Community.
Last Updated: September 10, 2025
This article is the second in a series introducing “Worshiping the Triune God,” a working document published following the inaugural meeting of the World Communion of Reformed Churches (WCRC) in June 2010 (see Part 1 in RW 100).
To help you smile as you read the words of “Worshiping the Triune God,” Reformed Worship has planned a series of articles that provide a framework for studying this new resource. We hope to entice you and your worship leadership team to become personally invested in the ongoing global conversation this document has begun, and to discover how your local Lord’s Day celebration intersects, informs, and impacts the worship, witness, and mission of brothers and sisters in Christ around the globe.
Christ’s ascension is a pretty big deal. Saint Luke includes detailed accounts of Jesus’ instruction, blessing, and supernatural departure in both the ending of his “first book” (Luke 24:44-53) and the beginning of his “second book” (Acts 1:1-11). And those in the Reformed tradition stress the importance of Christ’s ascension as a witness and guarantee of our own resurrection as well as a call to evangelism, justice, and compassion (see, for example, Heidelberg Catechism Q&A 46-52).
The Day of Pentecost is a festival that could easily develop an inferiority complex if its liturgical value were measured by Protestant celebration.
Pentecost, like its first cousins Epiphany and Ascension, passes unnoticed in many congregations. It doesn’t possess the intrinsic “awe” factor of Christmas or the “wow” of Easter. But Pentecost is an amazing holy day. It marks the end of a whole season of resurrection celebration and the beginning (or re-energizing) of Spirit-led, day-to-day, rubber-meets-the-road ministry.
Dateline Pittsburgh, Pennsylvania, 1936. An upscale Presbyterian congregation in the Shadyside neighborhood, seeking a new way to promote world mission, births the notion of a Worldwide Communion Sunday, to be celebrated on the first Sunday of October. A plaque in the chancel floor of Shadyside Presbyterian marks the spot to this day. Within four years of its inception, the Department of Evangelism of the old Federal Council of Churches had heard about the idea. Sixty years later, a casual Google search of “World Communion Sunday” threatens “about 23,700” hits.
A celebration of World Communion Sunday need not be odd or uncomfortable for people with a limited experience of languages and cultures other than their own (see p. 3). Any time we plan worship, we need to ask, What is the authentic “language” (ethos, perspective, culture) of the congregation? In what forms can the gospel be heard most clearly, and in what language(s) can the congregation glorify God most freely?
For more information about Redeemer Presbyterian Church, visit www.redeemer.com.
Seek the prosperity of the city to which I have carried you into exile. Pray to the Lord for it, because if it prospers, you too will prosper.
—Jeremiah 29:7
What’s the best way to present the doctrine of the atonement at a conference for worship planners and leaders? One way would be to suggest Scripture texts and songs that focus on this teaching of Scripture. But Donald Hustad, Carl Stam, and Paul Detterman—all from Louisville, Kentucky—collaborated in a more challenging approach: preparing and walking participants through a worship service celebrating Christ’s atoning work for the sins of the world.
Q: What do you get when you are asked to take part in an event for which you are remarkably unprepared?
A: Butterflies in your stomach.
Q: What do you get when you realize that the majority of participants in that event are as unprepared as you?
A: The false assurance of safety in numbers.
Q: What do you get when the leadership of that same event begins to realize what’s going on?
A: Frustrated and disheartened leadership.
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