new nets: bounded sets, fuzzy sets, or centered-sets?

My friend Rick pointed out wonderful summary of set theory as applied to the Christian misison in a gem of a footnote tucked away in Exclusion and Embrace: A Theological Exploration of Identity, Otherness, and Reconciliation, by Miroslav Volf. Volf writes from his experience in Croatia during the war there. Bert Waggoner, the National Director of Vineyard USA told me (if memory serves) that Volf has a Pentecostal background.  Not your typical ivory tower academic.
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new nets: set theory, why bother?

We’re taking our time plodding through set theory–bounded sets, centered sets, etc.  Why? Why bother?  What does any of this have to do with faithfulness to Jesus?  Thanks for asking. Set theory is a way of understanding underlying cultural assumptions that affect the way we understand categories.  Still pretty esoteric sounding?  Except that categories are important in the Bible and in life.  Who is a Christian for example, is a category question.  Who is a member of the body of Christ? is a category question.
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New Nets: More on Bounded Sets

I’d like to say more about bounded sets before moving on to other approaches to church.  Picture a bounded set approach to church as a circle in the form of a ring. Members of the group fulfill certain criteria and become members of the group thereby.  It’s pretty clear who is a member of the group and who isn’t.  People are either “all in” or “all out.”  The boundary is comprised of whatever beliefs and behaviors are viewed by the church in question as essential for membership in the group.  Keep in mind that boundaries like this include both formal statements (like creeds and defined positions on various moral-behavioral issues), cultural factors (as is the case with ethnic churches of many kinds) and other informally enforced boundaries (things which are accepted or rejected by group members through various forms of social sanction or pressure).
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New Nets: Beyond Bounded Set Fishing

We need some new nets.  Something more than contemporary worship music and great programs that meet needs and pastors who wear clothes from Old Navy.  It’s time to get missional, which always  means controversial.  It’s time to examine cultural assumptions that have hindered us from doing our job.  This post is the first in a series on one of those assumptions–how we in the Western world approach categories.  I learned this from John Wimber in the early Vineyard days.  He introduced me to the conversation in mission circles about “bounded set and centered set” groups.  
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