Brian Sanders names the ecclesial minimum so practitioners can stop guessing what counts. In Life After Church he walks Saul’s calling in Acts 9 and finds three essentials already present in that conversion: worship that surrenders a life to Jesus as Lord, community that joins the body, and mission that turns a zealot toward the kingdom. A decade later the Underground manifesto and Underground Church fix the same three under one clean rule. Church may hold more than these three. A gathering that drops any of them fails his test for church.
The claim matters now because many gatherings carry a building, a brand, or a budget and still lack shared life or shared sending. Other gatherings look ordinary (a bar after work, mothers in a park) and already hold all three. Sanders’s reframe is simple: look for worship, community, and mission overlapping in the same people at the same time. When you see that overlap, you are looking at the church.
That floor opens a pathway for citywide networks. Microchurches stay small enough to enter corners a centralized Sunday cannot reach. A hub gathers for worship, training, and leadership so those small churches stay supplied. Desired gifts such as appointed leadership, sacramental worship, the gifts of the Spirit, and giving are welcomed. They are not the test that decides whether a group is church.
The pathway on this page stays inside that minimum. The three parts below show how each element works. The stories, practices, and questions that follow help a team measure their own life against the same floor. Related themes on calling, re-forming, the poor, and the missionary hub wait once this definition is clear.