Yoido Full Gospel Church in Seoul, South Korea, is not only the largest church in the world but also one of the most influential in pioneering the concept of multiplying groups. With a membership exceeding 800,000, its exponential growth is rooted in a deep commitment to prayer, discipleship, and an innovative cell group system that emphasizes multiplication. This model has become a template for churches around the globe, demonstrating how small groups can catalyze growth and transform communities.

The Origins of the Cell Group Model

In the late 1950s, when Pastor David Yonggi Cho began his ministry, the church was small, meeting in a tent with only a handful of members. However, Cho envisioned a church that would reach millions for Christ. He realized that traditional methods of ministry would not be sufficient to achieve this vision, especially in a densely populated city like Seoul.

Drawing inspiration from the early church in Acts and his own experience of ministering in homes, Cho developed the cell group system—a decentralized model where small groups meet in homes during the week for Bible study, prayer, and evangelism. These groups became the foundation for the church’s growth.

How the Cell Group System Works

The success of Yoido Full Gospel Church is tied to the effectiveness of its cell group model. Here’s how it functions:

Small Groups with a Purpose

Each cell group typically consists of 10–15 members who meet weekly in homes. The purpose of these groups goes beyond fellowship; they focus on:

• Bible Study: Groups engage in simple, application-based studies of Scripture.
• Prayer: Members pray for each other and for their neighbors, often interceding for specific needs.
• Evangelism: Each group is tasked with reaching new people and inviting them to join.

Multiplication by Design

Cell groups are intentionally structured to multiply. When a group grows to about 15 members, the leader trains an assistant who will eventually lead a new group. This ensures continuous expansion. In fact, the term “cell” is based on the growth through division that happens in biological cells:

Cho groups have been defined as “cell groups” because of a commitment to divide in a similar way to the growth and division of biological cells. A more accurate translation would be “little area” group. However, a number of new groups have begun without dividing from a former group.

Size of groups: When a group reaches about twelve members, the group is considered for “dividing” or “branching,” with the assistant becoming the leader of the new group.[1]

Empowering Lay Leaders

A key to the church’s growth is its emphasis on empowering ordinary members to become leaders. Potential leaders are identified, trained, and mentored within the cell group before being sent out to lead their own.

Accountability and Support

Cell group leaders are supported by a hierarchical structure of leadership. Leaders report to section leaders, who oversee multiple groups and provide guidance and encouragement. This structure maintains quality while enabling rapid growth.

Integration with Sunday Worship

While cell groups form the heart of the church, they are closely connected to the larger congregation. Members gather for corporate worship at Yoido’s main campus, where they receive teaching and vision casting from senior leadership.

The Role of Prayer in Multiplication

Prayer is the lifeblood of Yoido Full Gospel Church and its cell groups. Pastor Cho emphasized that prayer is the engine behind multiplication. Key practices include:

• Daily Prayer Meetings: Members are encouraged to attend early morning prayer meetings at the church.
• Prayer Mountain: The church operates a retreat center where members can fast and pray for extended periods. Many cell group leaders seek God’s guidance there before launching new groups.
• Intercessory Prayer: Groups regularly pray for the spiritual and physical needs of their communities, creating a powerful testimony of God’s provision.

Impact of Multiplying Groups

The cell group model has had a profound impact on Yoido Full Gospel Church and beyond:

Exponential Growth

The church grew from a handful of members in the 1950s to over 800,000 today. The ability to multiply groups has enabled the church to reach neighborhoods, apartment complexes, and workplaces across Seoul and beyond.

Empowered Membership

By decentralizing leadership, the church has mobilized thousands of laypeople to take ownership of ministry. This not only increases participation but also ensures that new believers are quickly discipled.

Community Transformation

Cell groups often serve as centers of outreach and compassion. Members organize service projects, care for the needy, and share the gospel with their neighbors. In many cases, entire communities have been transformed by the presence of these groups.

Global Influence

Yoido’s cell group model has inspired churches worldwide. Movements like the G12 model in Latin America and disciple-making movements (DMMs) in Africa and Asia have adapted similar principles of small group multiplication. They are not content with reaching their city:

The astounding growth of the church in South Korea has led to estimations that Christians make up nearly 29 percent of the population. This is one of the highest percentages of Christians in any country besides the United States. But the Korean church is not content to see the gospel impact only their country. Korean missionaries are now going out to the entire world in the same way their nineteenth-century Western predecessors did. Korea is often listed as the nation sending the second-highest number of missionaries, with the United States still sending the most missionaries of any country in the world.[2]

Stories of Multiplication

The impact of Yoido’s cell group strategy is best seen in the lives it has changed:

Mrs. Kim’s Story: Mrs. Kim, a housewife, joined a cell group after being invited by a neighbor. She experienced deep spiritual growth and eventually became a group leader. Within two years, her group multiplied into three new groups, reaching over 30 people in her apartment complex.

Reaching the Unreached: A cell group in a remote village outside Seoul began meeting with just five members. Over time, their consistent prayer and evangelism led to dozens of conversions. Today, the village has a thriving church birthed from that initial group.

Workplace Groups: In one case, a cell group started in a factory. Workers met during lunch breaks to study the Bible and pray. The group multiplied into five new groups, impacting hundreds of employees with the gospel.

[1] Discipleship Journal, Issue 62 (March/April 1991) (NavPress, 1991).

[2] Jeffrey K. Jue, “Last Things: The Gospel in Asia,” Tabletalk Magazine (Sanford, FL: Ligonier Ministries, Inc., 2017), 73–74.