Movemental

Theme 1 of 7

The Ecclesial Minimum

Worship, community, and mission together are the floor of church.

What is the least a gathering must hold to be church?

What is the least a gathering must hold to be church?

What is the least a gathering must hold to be church?

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Worship, community, and mission, then, are the ecclesial minimum.
—
Brian Sanders, Underground Church, chapter-4-foundations

Overview

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.

The usual question:

What is the least a gathering must hold to be church?

The better question:

What is the least a gathering must hold to be church?

The framework

The idea

Sanders’s ecclesial minimum has three named parts in a fixed order: worship, community, and mission. He first heard them in Saul’s calling. He later wrote them as the Underground’s irreducible floor. Each part can stand alone as a good Christian practice. Church begins only when all three live in the same people. The sections below keep his names and his order.
01

Worship

, for Sanders, is the first move of church because Jesus confronts Saul with a command that demands obedience. In Acts 9 the risen Lord speaks. Saul drops his old mission and follows. Sanders refuses to shrink that moment into a song set or a quiet interior mood. Worship is the offering of a life in total surrender, measured against the worth of Jesus.

A people become one step closer to church when they are known by God as submitted to Jesus as head. The body language of the New Testament only makes sense if Christ rules the gathering. Without that submission, the group may still be sincere and still fail the floor.

In later teaching he keeps the same center: alignment to Jesus as Lord sits inside the minimum before shared life or shared sending. The hub may add sacramental worship and other gifts. Those gifts enrich worship. They do not replace the surrender that makes worship ecclesial.

02

Community

is the second part because Jesus identifies himself with the people Saul was persecuting. To know Jesus is to enter his body. Sanders is blunt: there is no church of one. God saves persons and then draws them into reconciliation with one another.

He distinguishes a crowd that worships in the same room from a people who share life under worship and mission. The first can be beautiful. Relationships still have to carry the weight of faith before the gathering crosses into church. Soft pressure and shared difficulty become glue. Loose affinity around music or a pastor will not hold when conflict comes.

In the Underground years, community remains genuine shared life inside the mission field. Microchurches form micronetworks of people who know each other while they pursue a calling. The larger city network exists to strengthen those bonds and to keep anonymity from becoming the default at scale.

03

Mission

is the third part and the purpose that turns worship and gathering into church. Saul was already zealous. What changed on the Damascus road was his grasp of God’s heart and God’s work in the world. Sanders says delivering good news by proclamation and demonstration is the core purpose of every worshiper and every community of God.

By adding that purpose to worship and gatherings, a people become church. Without it, even warm fellowship drifts toward scrutiny of paint, music, and personalities. Shared mission gives partners something weightier than each other’s flaws.

The Underground measures that part by microchurches started, including ones that do not last, because calling obeyed and frontier engaged matter more than weekend headcount. Mission here is customized: each microchurch aims at a people and a place as particular as the person who starts it.

The ecclesial minimum recovers a church Jesus would recognize: people submitted to him, bound to one another, and sent into his mission, small enough for ordinary disciples to lead.
Scripture

The Biblical Mandate

Acts 9
Acts 9 supplies the pattern for the three essentials in Saul’s calling on the Damascus road. Romans 12:1 deepens worship as offered life. John 20:21 sends the whole community as Jesus was sent. Together they support Sanders’s claim that worship, gathering, and mission functioning together in any form represent the church of Jesus on earth for teaching practitioners today clearly.
Case studies

Stories from practice

Case Study

Breakfast after the shift

Tampa clubs and breakfast tables, early 2007 — Breakfast after the shift

One of the Underground’s early microchurches entered club dressing rooms with gifts and prayer, then waited after night shifts for breakfast conversations where worship, community, and mission took ordinary forms among women leaving the sex industry in Tampa. The details stay as Sanders tells them.
Case Study

The people’s music

Underground staff meeting, Tampa — The people’s music

Staff reviewed a start-something form from known leaders who wanted a recording studio and label for homeless musicians, then green-lit the idea after reading how worship, community, and mission would be built into that new work. The details stay as Sanders tells them.
Case Study

A form without mission

Same Underground staff meeting, Tampa — A form without mission

A second start-something form lacked mission to the lost or the poor. The team refused a green light that morning, then assigned follow-up discipleship to see whether a real sending vision could still be drawn out of the idea. The details stay as Sanders tells them.
Case Study

Adjacent possible on the street

Late-night street outreach, Tampa Underground network — Adjacent possible on the street

A microchurch aiming at women in prostitution met transgender men on the same streets at night. A later team felt called to that community, and the two works began to collaborate across shared late-night outreach. The details stay as Sanders tells them.
Formation practices

Start-something draft

Write answers as if you were submitting an Underground start-something form.
Step 1

Step 1

Name the people and place you feel sent toward.
Step 2

Step 2

List who is actually on the team today.
Step 3

Step 3

Answer how worship will be practiced among them.
Step 4

Step 4

Answer how community will be shared among them.
Step 5

Step 5

Answer how mission will reach beyond believers.
Step 6

Step 6

Read the answers aloud to two trusted friends.
Step 7

Step 7

Name the gathering in one sentence.
Step 8

Step 8

Write evidence of worship as surrendered lives beyond the song set.
Step 9

Step 9

Write evidence of shared life beyond attendance.
Step 10

Step 10

Write evidence of mission to people not already churched.
Step 11

Step 11

Mark each part present, thin, or absent.
Step 12

Step 12

Choose one recovery move for the thinnest part.
Step 13

Step 13

Choose one niche people you already know.
Step 14

Step 14

Show up in their ordinary setting at least four times.
Step 15

Step 15

Offer one concrete act of help or friendship each visit.
Step 16

Step 16

Open one pathway for prayer or Scripture among them.
Step 17

Step 17

Share a meal or lingering conversation after the “shift.”
Step 18

Step 18

Debrief with your team: where did each of the three appear?
  1. Use these slowly. Answer from the week you are actually living.

AI Lab

Ask the Lab how the ecclesial minimum lands in your actual church, team, and city corner. You help readers practice Brian Sanders’s ecclesial minimum. Keep the reframing question open: what is the least a gathering must hold to be church? The parts are worship, community, and mission in that order. Desired gifts (appointed leadership, sacramental worship, gifts of the Spirit, giving) enrich maturity while the floor stays at the three. Draw first on *Underground Church* manifesto article 16 and Foundations, then on *Life After Church* chapter “Our Building Project,” then on the essays “A Smaller Way,” “How Microchurch Makes Mega Impact,” and “The Power of 10.” Ask about the reader’s city, team size, and current gatherings before prescribing a model or a hub redesign. Cite works by title and chapter when you lean on a claim. When the reader wants to act, point them to Try it and Questions to sit with on this page. Stay inside Sanders’s own vocabulary for church. Leave holiness questions for other themes. Hold creative control local once worship, community, and mission are present together.

  • Try: “What is missing from our Sunday by this minimum?”
  • Try: “How do we name an unnamed microchurch nearby?”
  • Try: “Walk our team through worship, community, mission.”
  • Try: “Who among us is ready to start something?”
  • Try: “How should our hub serve smaller churches?”
Explore the AI Lab

If a bar group has worship, community, and mission, is it church?

Yes, in Sanders’s definition. Men meeting after work to surrender their lives to Jesus, pray for families, and share meals and the gospel with nonbelieving friends already hold the ecclesial minimum in ordinary form and count as church by his public test.

Is a large Sunday without shared life still church?

By this minimum it fails the test for church. A service that moves thousands who never engage one another or the mission may be powerful worship, and Sanders still refuses to call that gathering the church of Jesus. That answer holds wherever the three essentials are weighed honestly.

Can mothers in a park be a church?

Yes, when they pray together, share struggles, recommit to living for Jesus, and aim together at reaching every mother in that school community with the good news of the kingdom of God. That answer holds wherever the three essentials are weighed honestly.

How is a microchurch different from a small group?

A microchurch lives sent, worships, and belongs as church under the three essentials. A small group that only fellowships, or only studies, as a program of a larger institution has not yet crossed that ecclesial floor into church. That answer holds wherever the three essentials are weighed honestly.

Must a microchurch stay tiny forever?

No. Sanders keeps the word micro as a leveler in a culture that praises the big. Some of these churches grow large, and he still refuses to rank their worth by headcount or by seating capacity alone. That answer holds wherever the three essentials are weighed honestly.

Who is allowed to lead a microchurch?

Ordinary believers who hear a call may lead one. Sanders answers the shocked question “Anyone can lead a church?” with “Exactly,” because mobility and context widen the priesthood of all believers across niche fields. That answer holds wherever the three essentials are weighed honestly.

Why keep a citywide hub at all?

Microchurches need larger network leadership and resources to endure over time. The hub gathers to strengthen and supply them in their fields. The larger expression exists to serve the smaller churches. That answer holds wherever the three essentials are weighed honestly.

Are baptism, communion, and leaders required?

They are desired and encouraged in manifesto teaching. They remain outside the requirement that decides whether a group is a microchurch under the ecclesial minimum of worship, community, and mission together. That answer holds wherever the three essentials are weighed honestly.

Isn’t this definition too rigid?

Sanders hears the charge and answers that the definition is actually broad and flexible in practice. Many things people call church fail it, and many unnamed gatherings already pass it with room to spare. That answer holds wherever the three essentials are weighed honestly.

Watch for distortion

Misreadings

Leaders apologize for boutique churches, chase seating capacity as proof of blessing, or treat micro language as a temporary stage before a “real” campus arrives. Praise, coaching time, and budget drift toward the largest room in the network until smaller works feel provisional. Sanders keeps the word micro because the culture praises the big. Some microchurches grow large. The term levels status so the network can honor faithful work in prisons and other fields attendance metrics would quietly avoid. He wants quality and calling visible beside size, so the smallest church still receives the hub’s full help. "Yet, we persist in using this term because, to us, to emphasize the small is good in our culture that too often emphasizes the big.". He corrects the misreading with patience and with the three essentials kept in view for practitioners who still love the people holding it. Networks copy one cell template across neighborhoods, enforce brand identity on every group, and call the copies microchurches. Leaders are valued for reproducing sameness quickly rather than for hearing a particular call into a particular people. The pattern repeats wherever size or branding is treated as proof of church. He refuses cell strategies that reproduce one model. Microchurches are customized expressions as unique as the people who start them, without a required brand identity shared with another church. Calling births the form, and franchise logic cannot substitute for that hearing. "Our microchurches are unique expressions of the church that are as different as the people who start them.". He corrects the misreading with patience and with the three essentials kept in view for practitioners who still love the people holding it. Institutions with a marquee, elder board, and budget are counted as church automatically. Bar tables, parks, and niche meals are treated as extras outside “real church,” even when the three essentials already live there among ordinary people. The pattern repeats wherever size or branding is treated as proof of church. Sanders says some things masquerade as church while unnamed gatherings already are church. Peel cultural layers until only the essentials remain, then judge by that floor. Buildings and boards can be gifts that serve maturity. They never substitute for worship, community, and mission held together in one people. "When those three things are happening in the same place at the same time, you’re looking at the church.". He corrects the misreading with patience and with the three essentials kept in view for practitioners who still love the people holding it.

Small means insignificant

Leaders apologize for boutique churches, chase seating capacity as proof of blessing, or treat micro language as a temporary stage before a “real” campus arrives. Praise, coaching time, and budget drift toward the largest room in the network until smaller works feel provisional.

Sanders keeps the word micro because the culture praises the big. Some microchurches grow large. The term levels status so the network can honor faithful work in prisons and other fields attendance metrics would quietly avoid. He wants quality and calling visible beside size, so the smallest church still receives the hub’s full help. "Yet, we persist in using this term because, to us, to emphasize the small is good in our culture that too often emphasizes the big.". He corrects the misreading with patience and with the three essentials kept in view for practitioners who still love the people holding it.

Microchurch as franchise

Networks copy one cell template across neighborhoods, enforce brand identity on every group, and call the copies microchurches. Leaders are valued for reproducing sameness quickly rather than for hearing a particular call into a particular people. The pattern repeats wherever size or branding is treated as proof of church.

He refuses cell strategies that reproduce one model. Microchurches are customized expressions as unique as the people who start them, without a required brand identity shared with another church. Calling births the form, and franchise logic cannot substitute for that hearing. "Our microchurches are unique expressions of the church that are as different as the people who start them.". He corrects the misreading with patience and with the three essentials kept in view for practitioners who still love the people holding it.

Signs and budgets make church

Institutions with a marquee, elder board, and budget are counted as church automatically. Bar tables, parks, and niche meals are treated as extras outside “real church,” even when the three essentials already live there among ordinary people. The pattern repeats wherever size or branding is treated as proof of church.

Sanders says some things masquerade as church while unnamed gatherings already are church. Peel cultural layers until only the essentials remain, then judge by that floor. Buildings and boards can be gifts that serve maturity. They never substitute for worship, community, and mission held together in one people. "When those three things are happening in the same place at the same time, you’re looking at the church.". He corrects the misreading with patience and with the three essentials kept in view for practitioners who still love the people holding it.

Key terms

Pathway vocabulary

ecclesial minimum
Sanders’s rule that church can include more than worship, community, and mission, and cannot include less. When believers work together in sincere worship and genuine community to accomplish a part of the mission of God, they are the church in his teaching. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
microchurch
An autonomous, contextualized church, often small, formed when the three essentials overlap around a calling. It is as unique as the person who starts it. It needs a larger city network for strength while refusing to exist only to feed a celebrity center. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
worship
First element of the minimum. More than a music set: acknowledgment of Jesus’s worth and the disciple’s obedience. Alignment to Jesus as Lord is the starting place before shared life or shared sending can make a people church. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
community
Second element of the minimum. There is no church of one. Reconciliation with God draws people into reconciliation with each other. It runs deeper than affinity around a service style and bonds people through shared faith and pressure under mission. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
mission
Third element and purpose that turns worship and community into church. It is proclamation and demonstration of good news. In Underground practice it is measured by microchurches started toward particular peoples and places. Keep the term tied to Sanders’s own chapters rather than to generic church talk. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
hub
Citywide leadership, training, worship gatherings, and resources ordered to supply microchurches in their fields. Sanders’s rule for the relationship is that the larger church expression exists to serve the smaller churches. Keep the term tied to Sanders’s own chapters rather than to generic church talk. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
desired and not required
Biblically appointed leadership, sacramental worship, gifts of the Spirit, and giving are encouraged as maturity. They do not decide whether a group counts as a microchurch. The floor remains worship, community, and mission. Keep the term tied to Sanders’s own chapters rather than to generic church talk. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
priesthood of all believers
Because the church can be simple and mobile, ordinary disciples can lead under calling. Empowerment connects people to authority they already have from God so niche fields gain indigenous leaders who know the people. Keep the term tied to Sanders’s own chapters rather than to generic church talk. Keep the term tied to Sanders’s own chapters rather than to generic church talk.
About the author

About Brian Sanders

Brian Sanders

Founder

Founder of the Underground Network and a practitioner of microchurch movement in Tampa's inner city.

The Ecclesial Minimum