Big theology for kids — The church kids belong to

What we teach children about the church shapes whether they see themselves as members or visitors

Ask a group of children what ’church’ is, and you will most likely hear a version of the same answer: a building with a cross on it, or the thing that happens on Sunday morning, or "the place I go to Sunday School." Ask them whether they are part of it or go to it, and the answer gets murky fast. Many children, if pressed, will describe church as something adults do, that they attend.

However, this picture of ’church’ fails to give young people a robust and theologically rich understanding of belonging to the people of God. It matters because the picture of church a child carries shapes whether they see themselves as members of a family or spectators at an event, whether Sunday feels like their community or a program, and whether they feel they belong once nobody is making them turn up. The biblical picture of church is more concrete, more relational, and more immediate than the version most children are given.

Start with the word itself

The correction begins with the word. The New Testament’s term for church is ekklesia: an assembly, a gathering of people called out together. The New Testament never uses the word to refer to a building. It is not a program, a service, or a time slot. It is people, gathered. The New Testament has two aspects to this gathering of God’s people:

·       The physical gathering of a people in a particular time and place (eg. 1 Cor. 11:18; Rom. 16:5)

·       The global community of Christians who, while geographically and temporally disparate, are spiritually gathered in the heavenly realms around the throne of Christ (Eph. 1:22; Phil. 3:6; Col. 1:18).

‍This matters because our buildings and calendars quietly teach the opposite. We say, "going to church" the way we say, "going to the shops," treating church as a location visited rather than a people belonged to. Children absorb the grammar before they absorb the theology. Today, we do refer to buildings as ‘churches’ so this is a valid use of the word, however if church is only somewhere you go, then not going has no relational cost. If church is a family you belong to, staying away means the family notices you are missing.

Not a place you attend, a family you belong to

Paul tells the mostly Gentile believers in Ephesus that they are ’no longer strangers and aliens, but... fellow citizens with the saints and members of the household of God’ (Ephesians 2:19). Peter goes further, describing the church in the corporate, national language of Israel itself: ’a chosen race, a royal priesthood, a holy nation, a people for his own possession’ (1 Peter 2:9). Neither writer is describing an organisation you sign up for. Both are describing a family and a nation you are made part of .

‘You are no longer strangers and aliens, but you are fellow citizens with the saints and members of the household of God.’ Ephesians 2:19

None of this language is age-graded. Scripture does not describe a junior tier of belonging that children graduate out of at some undefined point of maturity. An eight-year-old who loves Jesus is, by Peter’s description, as much a member of God’s holy nation as the sixty-year-old elder standing at the door. Our structures often say otherwise, and children notice the gap between what we teach and how we organise ourselves.

‘A church is not the kingdom; it’s an outpost or embassy of that kingdom.’ Jonathan Leeman, Church Membership

Leeman’s embassy image is worth teaching directly to older children and preteens. An embassy does not simply house citizens passing through; it represents its home nation, declares its interests, and cares for its people in a foreign land. If your local church is Christ’s embassy, then children within it are not visitors waiting for a passport. They are already citizens of the kingdom it represents, present in the room, with a stake in what happens there.

What our structures are teaching

This is where curriculum and structure need to agree. Terms like ‘big church’ and ‘little church’ quietly rank one gathering above the other, no matter how good the children’s program is. A model where children are removed at the door and reunited only at pick-up teaches, by pattern rather than statement, that real church happens elsewhere, without them. We can run an excellent children’s ministry and still be forming a thin ecclesiology alongside it, simply through the shape of a Sunday. Age-specific children’s ministries are a vital part of a child’s discipleship in our churches, however when run unreflectively or with unclear language around church, we risk teaching something unintended.

The fix is not abandoning age-appropriate teaching, which remains necessary and good. It is making sure children regularly experience the whole gathered church, not only their segment of it. They may be present for baptisms, present for the Lord’s Supper, present in family services, and given genuine roles: reading, welcoming, serving. Belonging that is only ever spoken about, and never structurally visible, will not hold up against a teenager’s growing capacity to notice inconsistency.

Practical shifts for children's ministry

Reorienting how children experience church is possible without a major overhaul.  A few consistent adjustments make the difference over time.

·       Watch the language. Replace ‘big church’ and ‘little church’ with terms that do not rank one gathering above another, such as ‘the church gathering’ and simply naming your kids’ group without an implied hierarchy. If you introduce new names, explain why to leaders, parents, kids and the congregation. ‍

·       Make the whole church visible to children, regularly, not just at Christmas. Family services, baptisms, and the Lord’s Supper communicate belonging far more effectively than any single lesson on the topic. ‍

·       Give children real roles, not token ones. Welcoming, reading, serving morning tea; these are responsibilities that say this is your church too, not just performances staged for adults to admire.

·       Teach the ‘one another’ commands as descriptions of an actual, named community. When Paul tells the Colossians to ‘bear with one another’ (Colossians 3:13), help children connect it to real people, not an abstract principle. Their small group leader, the other child who annoys them at morning tea or the older teenager who is happy to get on the ground and play with them.

·       Say the word ‘belong’ before you say the word ‘member’. A child can be told plainly, "you are part of this church family," well before any formal membership process exists to confirm it . Children will experience this belonging by having opportunities for relationships with other safe adults or one or two leaders outside of the regular children’s ministry program.

The picture of church many children carry is not a small misunderstanding to correct later. It shapes whether a young adult sees church as their community to invest in or a program they have aged out of. Getting the language and the structures to agree with what we actually believe about the church is not a big theological project. It is an audit worth doing, and a habit worth keeping.

Further Reading

Beilharz, T 2025, The Child in God’s Church Youthworks Media

Leeman, J 2012, Church Membership: How the World Knows Who Represents Jesus Crossway

Clowney, E.P 1995, The Church InterVarsity Press

Bonhoeffer, D 1954, Life Together Harper & Row

Roberts, V 2002, God’s Big Picture: Tracing the Storyline of the Bible InterVarsity Press

Horton, M 2008, People and Place: A Covenant Ecclesiology Westminster John Knox Press

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