I think this Bounded/Centered set framework is incredibly useful in a discussion of how to bring together wildly different entities of the body of Christ. I studied under Paul Hiebert at Trinity Evangelical Divinity school. I even have notes of him talking about this in class, but it really didn’t make sense until I began seeing it employed in the emerging church conversation. (Dr. Hiebert just passed away of cancer on March 11, 2007. In Memoriam.)
Stated simply, we have different ways of determining who or what “belongs.” Employing set theory, we might describe a bounded set as anything inside a clearly defined set of criteria, a boundary. Based on how one might satisfy the requirements, you are “in” or “out.” A centered set is different in that “members” of the set are not defined by a boundary, but rather by its proximity to a central object.
Frost and Hirsh, in the Shaping of Things to Come, (p.47) do a great job of illustrating the difference by ranching in Texas as opposed to ranching in Australia. In Texas, ranches are defined by barbed wire fences that keep the cattle from roaming too far away and help define which cattle belong to whom. In Australia, it is not necessary to build fences. Instead, you just need to sink a well. Since water is scarce, cattle will not roam far, rendering fences unneccessary.
Perhaps we could say bounded-sets define by containing, centered-sets define by attracting.
Darrell Guder, in Missional Church, has a great chapter (Chapter 7) that applies this organizational principle onto the church. It used to be that the defining sense of “who belonged” was dictated by a denomination (Baptist, Lutheran, or Presbyterian), or a theological framework (Reformed, Dispensational, etc.) Rules of belonging were very clear and had an effect of separating the body of Christ. “I believe this, you believe that.”
Both books suggest that church should be centered set, and I would argue that this should be so both when thinking about church as “local” or “citywide.” Guder writes:
“that the centered set organizaton invites people to enter on a journey toward a set of values and commitments. For example, in the model that we have been developing in this book, the direction toward which people would be invited to move is the gospel’s announcement of God’s reign that is forming a people as God’s new society.”
This is very useful in thinking about a city reaching movement especially when a common denominator such as Jesus’ gospel of the Kingdom of God is the “well” that we do not stray far from. I see how this Kingdom commonality is increasingly the piece that can faciliatate a harmony of the body of Christ in places like San Diego. Harmonizing around Jesus, Kingdom and Mission allows for the different “notes” (churches, organizations, callings, and focii) to sound stronger as a chord. I’m thinking harmonizaton (centered set) is more suitable then homogenization (bounded set) as a metaphor for today.
A great thread can be found at this bulletin board. (I love the little re-mixed Matrix clip at the top.)
