The church is the community of all believers in Jesus Christ, called out by God to worship him, grow together, and share the gospel with the world. The word “church” comes from the Greek word ekklesia, which means “called-out ones”—people set apart to follow Jesus.
Understanding the meaning of the church helps us see that we’re talking about people, not buildings. The church is God’s people, not a place. It’s a called-out community (ekklesia) that worships, grows, serves, spreads the message of Jesus, and “teaches them to obey” all he commanded (Matt. 28:20). When we use the term ekklesia, we’re talking about people who’ve been adopted into God’s family and gathered together for God’s purposes.
The church is also distinct from the kingdom of God or what Jesus refers to as “the kingdom of heavens” in Matthew’s Gospel. Here’s the difference: the church can grow and be built, but God’s kingdom is revealed and manifested.
Those who become believers participate in the ongoing growth of the church both in numbers and in spiritual maturity. The kingdom of God is already established and is progressively revealed through Jesus as its king and through the power of the Spirit, to the glory of the Father.
What the Christian Church Is
The church connects believers across the world. When people come together around a common mission—like following Jesus and learning to live out his commands—they create bonds that are stronger than just friendship or shared interests.
The meaning of “church” extends beyond what we can see with our eyes. There’s a visible part (the people we worship with each week) and an invisible part (all believers everywhere, including those who have died and are with Jesus). Scientists who study group dynamics have found that organizations work best when members understand they’re part of something bigger than themselves. This research harmonizes with the biblical teaching that each local congregation is part of the worldwide body of Christ.
Body of Christ
One of the most powerful pictures of the church comes from the apostle Paul, who describes it as the body of Christ. This isn’t just a nice metaphor—it’s a description of how God designed believers to work together with incredible unity, purpose, and connection, with Jesus as the head.
Now you are the body of Christ, and each one of you is a part of it. (1 Corinthians 12:27)
When Paul wrote about the church in 1 Corinthians 12:27, Ephesians 4:15–16, and Romans 12:4–5, he was describing something that researchers today call “organizational synergy.” This is when different parts of a group work together so well that they accomplish more than they ever could individually.
But here’s something really important to understand: the New Testament uses the Greek word for “head of the church,” kephalē, which literally means physical head to the “body” (the church). It doesn’t use the ancient Greek word for “leader” when referring to Jesus. The church-and-body metaphor is referring to the deep unity and closeness between Jesus and the church. In fact, the apostle Paul says that marriage points to the union of Christ and his church (the bride of Christ).
The Bride of Christ
The Bible enlarges our understanding of the church by providing us with a beautiful picture depicting the church as the bride of Christ.
Husbands, love your wives, just as Christ loved the church and gave himself up for her. (Ephesians 5:25)
This image shows us the deep love, commitment, and future union between Jesus and his people. You can find this relationship described in Ephesians 5:25–27, Revelation 19:7, and 2 Corinthians 11:2.
This might seem like an old-fashioned way to think about the church, but it actually describes something that relationship researchers have identified as crucial for strong communities: assured commitment and sacrificial love.
When the Bible describes the church as Christ’s bride, it’s showing us that our relationship with Jesus cannot be reduced to following rules or attending services. It’s about a love relationship that will culminate in a future “wedding” when Jesus returns. This gives every believer hope and purpose, knowing that we’re part of a love story that will have a perfect ending.
Who Is the Church?
The church is all people who have repented and put their faith in Jesus Christ as Savior and Lord, King and Priest. This is described clearly in 1 Corinthians 12:27 and Ephesians 2:19–22.
This might surprise you, but the church isn’t limited to people who belong to a particular denomination or worship in a certain style. It’s not about whether you prefer traditional hymns or contemporary music, whether your church building is old or new, or whether your pastor wears a suit or casual clothes.
What is the church when it comes to membership? It’s everyone who has genuinely put their trust in Jesus Christ for salvation. This includes people from every nation, race, age group, and background. It includes people who lived hundreds of years ago and believers who are alive today.
From Aristotle to the scientists who study human communities today, many have observed that the strongest groups are those united around shared core values rather than superficial similarities. The church demonstrates this principle—believers from completely different cultures and backgrounds find deep unity through their shared faith in Jesus. The church is open to anyone who believes in Jesus, regardless of their past mistakes or current circumstances.
The Global and Local Church
Understanding what a church is gets even more interesting when we look at the difference between the global church and the local church. Both are important, but they serve different purposes in God’s plan.
Universal Church
The universal church refers to all true believers in Jesus Christ throughout all times and places. It’s not limited by geography, denomination, race, gender, or historical moment. You can read about this in Ephesians 1:22–23 and Colossians 1:18.
The global church is typically understood as the visible body of believers around the world today. It includes churches centered on core historic Christian doctrines and practices of different denominations and traditions that preach the biblical gospel and follow Christ. This is the currently active body of Christ on earth.
Research in global communications has shown how interconnected our world has become. Believers today can pray for, support, and encourage each other across continents in ways that were impossible in previous centuries. Technology helps us experience the reality of the global church in practical ways.
Scientists studying social networks have discovered that people can feel connected to others they’ve never met if they share important common ground. This connection helps explain how Christians can feel a bond with believers in other countries, even when they don’t speak the same language or share the same culture.
Local Church
The local church is the visible, gathered body of believers in a specific location who come together to worship God, hear the teaching of Scripture, share in the sacraments (like baptism and the Lord’s Supper), and carry out the mission of the gospel in their community.
Research on community psychology shows that people need both large-group identity (knowing they’re part of something big) and small-group belonging (having people who know them personally). God designed the church to provide both through the global and local expressions.
Local churches come in many different sizes and styles, but they all serve similar functions: providing a place for regular worship, teaching, fellowship, and service. Some local churches are huge, with thousands of members, while others are small groups that meet in homes. Both can be healthy expressions of the church.
Studies on group effectiveness show that smaller groups (like local churches) are better at providing personal care, accountability, and close relationships. Larger groups are better at pooling resources for big projects and providing diverse perspectives. This is why both local and global expressions of the church are valuable.
What Is the Purpose of the Church?
What is the purpose of the church? This question gets to the heart of why God created the church in the first place. The Bible gives us several clear purposes that work together to accomplish God’s mission in the world.
To Glorify God
Now to him who is able to do immeasurably more than all we ask or imagine, according to his power that is at work within us, to him be glory in the church and in Christ Jesus throughout all generations, for ever and ever! Amen. (Ephesians 3:20–21.)
The church’s first and most important purpose is to glorify God, as described in Ephesians 3:20–21. This means everything the church does should point people to God’s greatness, love, justice, and power.
Research in positive psychology has found that people are happiest and most fulfilled when they’re part of something bigger than themselves. When the church focuses on glorifying God, it provides this sense of ultimate purpose that satisfies the deepest human needs.
To Make Disciples
Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age.” (Matthew 28:19–20)
Jesus gave the church a clear mission in Matthew 28:19–20: make disciples. This means helping people become followers and students of Jesus and helping them grow in their faith and practice.
Studies on effective teaching and mentoring show the best learning happens in relationships where experienced people invest in newcomers. The church has been using this model for two thousand years, long before educational researchers discovered its effectiveness.
To Worship God
God is spirit, and his worshipers must worship in the Spirit and in truth. (John 4:24)
The apostle John tells us that God seeks people who will worship him in spirit and truth. The gathered church provides a place for believers to come together and express their love and gratitude to God.
Research on group singing and communal activities has shown that when people worship together, it creates stronger bonds between them and reduces stress and anxiety. Church worship provides both spiritual and psychological benefits.
To Equip and Build Up Believers
So Christ himself gave the apostles, the prophets, the evangelists, the pastors and teachers, to equip his people for works of service, so that the body of Christ may be built up. (Ephesians 4:11–12)
This passage explains that the church should equip believers for service and help them mature in their faith. This is like training and development in the business world, but with eternal significance.
Educational psychology shows that people learn best in supportive environments where they can practice new skills with encouragement and feedback. The church provides this kind of environment for spiritual growth.
To Provide Fellowship and Care
Acts 2:42–47 describes how the early church shared life together, supporting each other through difficulties and celebrating together in good times.
Social science research consistently shows that people with strong community connections are healthier, happier, and more resilient during tough times. The church provides this kind of supportive community based on shared faith and values with the rich resources available from God and his kingdom.
To Serve Those in Need
The New Testament letters mandate that the church should serve orphans, widows, and those who are vulnerable or facing injustice. This attitude rings true for many people in our culture who are looking for ways to make a positive difference in the world.
Studies on volunteer work and community service show that helping others not only benefits those being helped but also improves the mental and physical health of those doing the serving. The church has always emphasized service as both a duty and a blessing.
To Be a Light to the World
Matthew 5:14–16 calls the church to be a light to the world, showing God’s love through actions and words.
Research on social influence shows that positive change often spreads through communities when groups of people consistently model better ways of living. The church is designed to be this kind of positive influence in society.
Who Builds the Church?
Who’s responsible for building this community of believers? The Bible gives us a clear answer that involves divine power working through human participation.
Jesus builds the church, as he promised in Matthew 16:18. This means that, ultimately, the church’s growth and health depend on Jesus, not on human efforts alone.
The Holy Spirit empowers the church through baptism and ongoing filling (strengthening), as described in Acts 1:8 and John 16:8–13. The Spirit provides the supernatural power needed for the church to accomplish its mission.
But believers also participate in the work—we work together with God to build his church.
Paul’s analogy from 1 Corinthians 12 helps us understand this partnership:
The church is like a human body. Jesus is the head—he leads, guides, and gives purpose. The Holy Spirit gives life and empowers the body, helping every part to respond to God’s direction. And God the Father calls us his children and shapes us into Christ’s likeness. Christians are the different parts of the body—hands, feet, eyes, and more. Every part matters, and no single part can do everything on its own.
Our Role in the Church
So what’s a Christian’s role in the church? It’s to work together with believers around the world to be part of God’s mission by sharing the gospel, praying for and supporting other believers, and working together to bring glory to God around the world, as described in Matthew 28:19–20, Acts 1:8, and 1 Corinthians 12:12–13.
This means the church isn’t something that merely happens to you—though it’s true that God places us in the church—it’s something you actively participate in. Whether you’re naturally outgoing or more quiet, whether you’re good with words or better with actions, God has a place for you in his church.
Studies on group participation show that organizations are strongest when every member feels valued and knows how to contribute. The church works the same way—it needs every believer to use their gifts and participate in the mission.
Your role might involve teaching, serving, encouraging, giving, praying, or many other activities. The key is staying connected to Jesus and to other believers so you can play your part in the church’s purpose.
