One Assembly

Church models matter.

Several decades ago, churches embraced the multiservice and multisite model as a solution to growth problems. But are these models biblically permissible? That's the question One Assembly sets out to answer. 

"Evangelical churches that are multisite or multiservice are like that for good-intentioned, pragmatic reasons. Jonathan Leeman challenges us to think exegetically and theologically about a popular practice that may not be as strategic as so many assume."

Andy Naselli
Associate Professor of Systematic Theology and New Testament, Bethlehem College & Seminary

"One Assembly is more than a critique of the multiservice and multisite movement. Leeman persuasively argues for the biblical faithfulness, beauty, and effectiveness of a single church service. Instead of slowing down gospel growth, the single-service model actually promotes the Great Commission by encouraging church planting. This is a must-read for anyone interested in church growth."

Aaron Menikoff
Senior Pastor, Mount Vernon Baptist Church, Sandy Springs, Georgia
Pick up your copy of One Assembly: Rethinking the Multisite & Multiservice Church Models at the 9Marks bookstore.

Listen in

In this conversation, Jonathan chats with his friend and multi-service pastor Mark Vroegop about One Assembly.  Watch here.

Pastors' Talk, ep. 123

In this episode of Pastors' Talk, Mark chats with Jonathan about why he wrote the book, and what he hopes it will accomplish.

Pastors' Talk, ep. 124

In the second part of their conversation on One Assembly, Mark chats with Jonathan about the argument of the book itself. They discuss how multi-site and multi-service churches developed over the years—and how they fall short of what the Bible says a church is. 


What Makes a Church a Church?

The biblical story of our church gatherings is set within the larger story of God’s kingdom and how God reveals his rule on earth.

The Little ‘C’ Catholic Church Explained

Whether multisite or single-site, congregational or episcopal, we need to think about working together with other churches.

Q. Why did you write this book? What's the burden behind it?

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Q. Who did you write One Assembly for?

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Q. How should we think about our assemblies in this strange season when we cannot physically gather?

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Q. Do multi-service churches make the same error as multi-site churches?

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Q. Is this book guilty of over-prescribing things the Bible doesn't?

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Q. You spend a lot of time in the book talking about "intuitions." Why?

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Q. You've already read One Assembly. Now what?

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Q. In less than 3 minutes, can you make the case for One Assembly?

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