In a Bounded set, the focus is on being either inside the defined parameters of a group or not. This is seen in contemporary society as well. Democrats, Republicans, Masons, and even card playing groups all have "rules" to define who is in and who is out.
Churches sometimes have long lists of rules that are sometimes backed by the Bible to keep a rigid set. These churches, as long as those inside play by the rules and continue to keep generations inside, will rarely go away but always remain.
Most bounded set churches have very set ideas on:
Most, if not all their focus is to save or witness to those outside the boundary and to keep those inside the boundary pure.
Hope operates with a Centered set. In this model, everyone has orientation around Jesus; not predefined rules. EVERYONE can come closer or move further away from the one who is the true judge, and has the opportunity to influence others to do the same! Missions and evangelism aren't with the same focus as the other model as all need to move closer, both the pastor and chief sinner!
This model makes traditional Christians uncomfortable. It means that a drug-abusing, gay, ex-con has the same opportunity to worship the forgiving Holy Spirit as anyone!
A mormon, muslim, pentecostal, methodist...whatever the label...have unfettered access to the creator of the world.
This model is inherently more biblical from the viewpoint that the Bible is not a rule book, but a story of how to be saved.
Many churches will have pseudo centered sets where they say all are welcome, but, in fact, there are boundaries around areas that make them uncomfortable like sexuality. "All are welcome" unless you are gay. "All are welcome" unless you ________.
In a Centered Set the Holy Spirit as given through Scripture is allowed to move with power and authority. Miracles can occur that all have responsibility to move one another towards Jesus Christ!