Church Growth International: History, Mission, Conferences & Global Impact

Contents

Church Growth International (CGI) is a global, interdenominational church growth institute headquartered at Yoido Full Gospel Church in Seoul, South Korea. Founded on November 4, 1976, by Dr. David Yonggi Cho, the legendary pastor who built the world’s largest congregation, CGI was established with a single, audacious purpose: to share the principles that made Yoido Full Gospel Church grow, so that churches everywhere could experience the same.

Today, under the chairmanship of Dr. Younghoon Lee, CGI operates across more than 100 countries, has hosted over 600 seminars with more than 12 million participants, and convenes a landmark international conference in Seoul that draws church leaders from across the globe. It is one of the most far-reaching church development organizations in the history of Christianity.

Overview and Mission

You don’t have to wonder what Church Growth International is trying to do. The mission is stated plainly and has never changed since day one: help churches around the world grow, using the same biblical principles that transformed a five-person tent church in post-war Seoul into the largest congregation in human history.

CGI is not a denomination. It’s not a church network that requires membership or doctrinal conformity. It is an international institute, a training, conference, and resource organization that serves pastors and Christian leaders regardless of their denominational background. Its reach spans Pentecostals and Methodists, Baptists and charismatics, evangelical congregations in the Global South and established denominations in Europe and North America.

The organization operates out of the 8th floor of the World Mission Center at Yoido Full Gospel Church, Seoul — the very institution whose growth story CGI was created to tell to the world.

History and Founding

By 1976, something extraordinary was happening in Seoul that the rest of the global church couldn’t ignore. Yoido Full Gospel Church, which had started in 1958 with five people in a patched-together tent, had grown into a congregation of hundreds of thousands. Pastors from across the United States, Asia, Europe, and beyond were making the journey to Seoul just to see it for themselves and understand how it happened.

Dr. Yonggi Cho recognized the moment. Rather than simply hosting curious visitors and sending them home, he formalized the knowledge transfer. On November 4, 1976, he established Church Growth International, an organization expressly designed to analyze, articulate, and export the principles behind Yoido’s growth to churches worldwide.

The inaugural CGI Conference followed quickly. On January 22, 1977, over 600 pastors from the United States and Thailand gathered at Yoido Full Gospel Church for the first formal CGI gathering. The response was immediate. Pastors went home inspired, applied what they learned, and their churches grew. The word spread. The conferences grew. The global reach expanded.

Early Conference History

The second CGI Conference took place in June 1983, followed by the fourth conference in October of the same year — a remarkable pace of engagement that reflected the global hunger for church growth insight. That October gathering drew over 300 masters, doctors, and pastors from 16 countries, all wrestling with the practical challenges of evangelism and growth in their own cultural contexts.

By 1986, CGI had expanded its geographic footprint: the seventh conference was co-hosted in both Osaka, Japan, and Seoul, drawing more than 1,200 pastors, including 505 from Japan alone, as the organization focused on evangelizing Japan and renewing its global mission. The 1989 conference brought in not just Pastor Cho but also Dr. Peter Wagner, one of the leading church growth theorists in the Western world, signaling that CGI had become a genuine bridge between the Korean Pentecostal model and the broader international church growth movement.

Leadership

Dr. David Yonggi Cho — Founder and First Chairman

Dr. David Yonggi Cho founded CGI in 1976 and served as its chairman for decades. He was simultaneously the senior pastor of Yoido Full Gospel Church, a prolific author, and one of the most influential Christian leaders of the 20th century.

Cho stepped down from active pastoral leadership of Yoido Full Gospel Church in 2008, with Younghoon Lee succeeding him. He passed away on September 14, 2021, at the age of 85, due to complications from a stroke. His theological writings, cell group methodology, and emphasis on prayer and the Holy Spirit shaped the DNA of CGI from its inception.

Dr. Younghoon Lee — Current Chairman

In 2022, Dr. Younghoon Lee was inaugurated as the second Chairman of CGI, the first leadership transition in the organization’s nearly five-decade history. Lee succeeded Cho not only as senior pastor of Yoido Full Gospel Church (a role he took in 2008) but now also as the global face of CGI. Under his leadership, the organization has continued to expand its international engagement, launch new regional seminars, and prepare for the CGI 50th Anniversary Conference in 2026.

Lee’s leadership style blends the Holy Spirit emphasis of Cho’s era with a contemporary awareness of post-pandemic church challenges. In his message for the 30th CGI Conference in 2024, he called on the global church to pursue “positive thinking, unshakable faith, holy dreams, and creative words”, the four core principles CGI has championed since the beginning.

Beliefs, Theology, and Denomination

What Denomination Is CGI?

CGI is not affiliated with any single denomination. It is an interdenominational organization that draws membership and participation from pastors and church leaders across the global spectrum of Christian traditions. While its roots lie in the Pentecostal theology of Yoido Full Gospel Church, itself affiliated with the Assemblies of God, CGI has always been deliberately ecumenical in its outreach, welcoming Baptists, Methodists, Presbyterians, independent charismatics, and virtually every other tradition that shares a commitment to evangelism and church growth.

CGI’s theological core is shaped by the conviction that the Holy Spirit is the primary agent of church growth. Prayer, the gifts of the Spirit, biblical faith, and systematic outreach through small groups are not presented as uniquely Pentecostal emphases but as universal principles drawn from Scripture that any church can apply. This broad theological posture is precisely why CGI has been able to operate effectively in 100 countries across wildly diverse denominational landscapes.

The organization’s theological framework reflects what Dr. Cho called the “fivefold gospel” of Yoido Full Gospel Church: salvation, the baptism of the Holy Spirit, divine healing, blessing, and the second coming of Christ. These convictions inform CGI’s teaching but are presented as invitations to engage rather than doctrinal litmus tests for participation.

The CGI Church Growth Model

Understanding CGI means understanding the model it was created to teach. Yoido Full Gospel Church didn’t grow by accident or by theological novelty alone. It grew through a systematic, reproducible methodology that Cho developed, and that CGI has spent nearly 50 years spreading to the world.

The Home Cell Group System

The cornerstone of the CGI model is the home cell group, a decentralized network of small groups meeting in homes, workplaces, and communities throughout the week for prayer, Bible study, and evangelism. Cho developed this system in the late 1950s and early 1960s, inspired by the early church in Acts and his own experience of pastoral limitations. He realized that one pastor could not effectively shepherd a congregation of thousands, but thousands of trained lay leaders each shepherding ten to fifteen people could.

Each cell group was designed not just to maintain existing members but to grow and multiply. When a group reached approximately fifteen members, the leader would train an assistant who would then go on to lead a new group. This multiplication principle was the engine that drove Yoido’s growth from a few hundred members in the 1960s to over 700,000 by the early 1990s.

By the time Yoido Full Gospel Church was recognized by the Guinness Book of World Records as the world’s largest congregation in 1993, it had more than 25,000 home cell groups operating across Seoul and beyond. This was not a megachurch supporting small groups — it was a network of small groups anchored by a central worship community.

The Four Core Principles

CGI distills the Yoido growth methodology into four principles that Dr. Younghoon Lee continues to champion today:

Positive Thinking: Faith-grounded optimism rooted in the promises of Scripture, not mere positive psychology. Believing God’s word over visible circumstances.
Unshakable Faith: Persistent, Spirit-empowered conviction that God acts in the life of His church and His people.
Holy Dreams and Visions: Clarity of God-given vision as the essential foundation for church growth. Cho famously insisted that pastors who have no vision produce churches that go nowhere.
Creative Words: The spoken word of faith, grounded in Scripture — the conviction that what leaders declare in alignment with God’s Word shapes the direction of their churches and communities.

Prayer as the Foundation

No account of CGI’s model is complete without addressing prayer. Yoido Full Gospel Church is as famous for its Prayer Mountain — a mountain retreat established in 1981 where tens of thousands have gathered for extended fasting and intercession — as it is for its Sunday services. CGI carries this emphasis into every seminar and conference. Church growth, in the CGI worldview, is not primarily a strategic or sociological phenomenon. It is a spiritual one, catalyzed by prayer and sustained by the activity of the Holy Spirit.

This prayer-centered approach aligns directly with the principles of strengthening a prayer life that have defined the Yoido model and CGI’s teaching for nearly five decades.

CGI Conferences: The Church Growth International Conference

The CGI Conference is the organization’s flagship gathering — a biennial international church growth rally held in Seoul, South Korea, that brings together pastors, ministry leaders, and believers from across the globe.

The conference is held at Yoido Full Gospel Church every two years, typically coinciding with the church’s major Prayer Rally, which draws up to 60,000 participants to a sports stadium. This combination of conference teaching and mass prayer is deliberate — it gives international delegates not just information about how Yoido grew, but an actual experience of the prayer culture that drove that growth.

30th CGI Conference — October 2024

The 30th CGI Conference took place in Seoul from October 23 to 26, 2024, with an expected attendance of approximately 12,000 believers from 79 countries. CGI Chairman Dr. Younghoon Lee described it as one of the largest post-pandemic Christian gatherings in the world, designed to help church leaders share strategies for church growth, address social conflicts, and promote a more service-oriented approach to Christianity.

CGI 50th Anniversary Conference — October 2026

The most significant CGI event in a generation is already confirmed: the CGI 50th Anniversary Conference, scheduled for October 28–31, 2026, at Yoido Full Gospel Church in Seoul. This milestone gathering marks half a century of CGI’s global ministry, a 50-year journey from a 1977 gathering of 600 pastors to an organization that has trained over 12 million participants in 100 countries.

In his message previewing the 2026 conference, Dr. Younghoon Lee described it as “more than a celebration of the past, a sacred milestone that invites us to reaffirm our vision and renew our commitment for the next fifty years.” Church leaders from around the world are expected to gather to seek the Holy Spirit’s direction for the future of global church growth.

Regional Seminars

Beyond the biennial Seoul conference, CGI runs seminars across the world throughout the year. To date, over 600 such seminars have been held in 100 countries, reaching more than 12 million participants. These regional gatherings bring CGI’s teaching on cell groups, prayer, evangelism, and church planting to local church leaders who cannot travel to Seoul, ensuring that the organization’s reach extends well beyond its flagship conference.

CGI Board of Directors

One of CGI’s most distinctive features as an organization is its board structure. The CGI board consists of 60 pastors and church growth specialists drawn from more than 25 countries. These are not honorary positions, board members are described as well-known Christian leaders, influential pastors, theologians, and evangelists who are actively serving their own congregations and ministries while participating in CGI’s global mission.

The board’s diversity is intentional. By drawing leaders from Asia, Africa, the Americas, Europe, and Oceania, CGI ensures that its church growth teaching is tested against a wide range of cultural, denominational, and sociological contexts. The board members are, in a real sense, the global proof of the model, pastors who were inspired by Yoido, went home, applied what they learned, and saw their own churches grow.

Publications: Church Growth International Magazine

CGI publishes a quarterly English-language magazine titled Church Growth International, distributed to approximately 18,000 readers in 181 countries. The magazine serves as the organization’s primary printed resource for the global church — featuring writings from the CGI chairman, board members, world-famous pastors, and theologians, all focused on the theme of church growth.

The magazine’s reach to 181 countries is remarkable for a special publication and reflects both the breadth of CGI’s network and the ongoing global demand for practical, biblically grounded church growth content. Back issues are accessible through the CGI website at cgikorea.kr.

Global Reach and Impact

The numbers are staggering when you step back to take them in. Since 1976, CGI has held over 600 seminars in 100 countries. More than 12 million participants have attended those seminars. The quarterly magazine reaches 181 countries. The biennial Seoul conference draws delegates from 70-plus nations. The board includes leaders from 25 countries. And the cell group model that CGI has taught worldwide has been credited with catalyzing church growth on every inhabited continent.

CGI’s impact is perhaps most visible in the Global South. In Africa, Latin America, and parts of Asia, the cell group model taught by CGI has been directly applied to church planting and growth movements that have transformed communities. In some of the fastest-growing Christian nations in the world, including South Korea itself, various African nations, and parts of Indonesia and Brazil, the Yoido model of Spirit-empowered evangelism combined with structured small group discipleship has taken deep root.

Rick Warren, pastor of Saddleback Church, conducted a Purpose-Driven conference at Yoido Full Gospel Church in 2006 — a striking symbolic exchange that underscored how the CGI model had influenced even pastors who built their own distinct methodologies. The influence runs across traditions and continents.

Dr. David Yonggi Cho: The Man Behind CGI

It is impossible to understand Church Growth International without understanding its founder. Dr. David Yonggi Cho was born on February 14, 1936, in the rural county of Ulju, South Korea. His childhood was marked by poverty — his father’s manufacturing business failed, and Cho learned English by spending time around American military bases, eventually becoming a translator for US troops by age 15.

At age 17, tuberculosis sent him to the hospital coughing up blood. It was there, at the threshold of death, that a Christian girl named Choi Ja-shil visited him, shared the gospel, and changed his life. He converted to Christianity, recovered, and felt called to ministry.

Cho studied theology under a scholarship at Full Gospel Bible College in Seoul, graduating in March 1958, the same year he and his mother-in-law, the late Rev. Choi Ja-shil, started a church with five members in a tent patched together from US Army scraps in one of Seoul’s poorest neighborhoods. What began in that tent grew into the largest congregation in the history of Christianity.

In addition to founding CGI in 1976, Cho was Chairman of the World Assemblies of God Fellowship from 1992 to 2000. He founded the newspaper Kukmin Ilbo in 1988, established the Elim Welfare Town social services facility in 1986, and authored several widely read books including The Fourth Dimension (1979), Successful Home Cell Groups (1981), and Prayer, Key to Revival (1984). He passed away on September 14, 2021.

Controversies

The Embezzlement Conviction

The legacy of David Yonggi Cho cannot be told without acknowledging its most painful chapter. In February 2014, the Seoul Central Court found Cho guilty of embezzlement and tax evasion. The court determined that Cho had directed church leadership to purchase unlisted stocks owned by his eldest son at approximately four times their market value, causing the church a reported loss of approximately 13 billion Korean won, roughly $12 million. He was sentenced to three years in prison, with a five-year suspension, meaning he avoided incarceration but received a formal criminal conviction.

Cho publicly addressed his congregation after the verdict. He acknowledged the conviction as the hardest day of his ministry life, expressed that his conscience remained clear before God, and told his church that through the experience he had learned that “an individual shouldn’t possess anything” beyond spiritual realities. The church permitted him to continue in part-time ministry after the conviction.

The scandal was a painful counterpoint to a ministry that had championed integrity and Spirit-empowered living for decades. Church observers noted the irony of a pastor associated with the prosperity gospel being convicted of financial impropriety, and the episode sparked broader conversations about accountability structures in large charismatic ministries.

Prosperity Gospel Criticism

Throughout his ministry, Cho faced sustained criticism from theologians and fellow evangelicals over what many perceived as an over-emphasis on material prosperity as a fruit of faith. His formulation of the “threefold blessing” /encompassing salvation, physical health, and material prosperity, was seen by critics as an alignment with prosperity theology that could mislead believers about the relationship between faith and financial outcomes. Cho consistently maintained that he was not teaching wealth-seeking but rather the goodness of a God who desires holistic human flourishing.

Interesting Facts About Church Growth International

CGI was founded just three years after Yoido Full Gospel Church moved to its current Yoido location — Cho acted quickly to formalize the lessons from that growth phase.
The inaugural CGI Conference in January 1977 drew over 600 pastors from the United States and Thailand — an international gathering that was remarkable for its time.
CGI’s magazine reaches 181 countries — more countries than most major international news publications.
The CGI board has never been dominated by Korean pastors alone; from early in its history, Cho recruited international leaders from Africa, Asia, the Americas, and Europe to shape CGI’s direction.
The CGI Conference in Seoul is held simultaneously with Yoido’s major Prayer Rally at a sports stadium that seats 60,000 — international delegates don’t just hear about prayer culture, they experience it.
CGI’s 50th anniversary falls in 2026 — fifty years from the November 1976 founding, with the anniversary conference scheduled for October 28–31 of that year.
Cho’s cell group model directly inspired César Castellanos of Colombia to develop the G12 Vision discipleship strategy in 1991, after Castellanos visited Yoido Full Gospel Church in 1983 and was transformed by what he saw.
More than 12 million people have participated in CGI seminars — a figure that makes CGI one of the largest pastoral training movements in the history of the global church.

Timeline of Major Events

Year	Event
1958	David Yonggi Cho and Choi Ja-shil found a tent church with five members in Seoul, South Korea.
1973	The church moves to Yoido Island in Seoul, accelerating its explosive growth phase.
November 4, 1976	Church Growth International is formally established by Dr. Yonggi Cho.
January 22, 1977	The inaugural CGI Conference is held at Yoido Full Gospel Church; over 600 pastors from the United States and Thailand attend.
1983	The second and fourth CGI Conferences held; international attendance broadens significantly to 16 countries.
1986	The 7th CGI Conference co-hosted in Osaka, Japan, and Seoul; 1,200+ pastors attend, including 505 from Japan.
1989	The 10th CGI Conference features Dr. Yonggi Cho and Dr. Peter Wagner as key speakers.
1992	Cho becomes Chairman of the World Assemblies of God Fellowship, extending CGI’s global ecclesiastical reach.
1993	Yoido Full Gospel Church enters the Guinness Book of World Records as the world’s largest congregation, with 700,000 members — validating the CGI model globally.
2008	Cho retires as senior pastor; Dr. Younghoon Lee succeeds him at Yoido Full Gospel Church.
2014	Cho is convicted of embezzlement by a Seoul court and given a suspended three-year sentence.
September 14, 2021	Dr. David Yonggi Cho passes away at age 85.
2022	Dr. Younghoon Lee is inaugurated as the second Chairman of CGI.
October 2024	The 30th CGI Conference is held in Seoul, drawing approximately 12,000 participants from 79 countries.
October 28–31, 2026	The CGI 50th Anniversary Conference scheduled at Yoido Full Gospel Church, Seoul.

Frequently Asked Questions

What denomination is CGI?

CGI is not affiliated with any single denomination. It is an interdenominational international institute that serves pastors and church leaders from across the global spectrum of Christian traditions — Pentecostal, Baptist, Methodist, Anglican, independent charismatic, and many others. While its roots are in the Assemblies of God-affiliated Yoido Full Gospel Church, CGI’s membership and board represent more than 25 countries and countless denominational backgrounds.

Who founded Church Growth International?

CGI was founded on November 4, 1976, by Dr. David Yonggi Cho, the senior pastor of Yoido Full Gospel Church in Seoul, South Korea — the largest congregation in the world. Cho founded CGI to formalize and export the principles that drove Yoido’s extraordinary growth to churches across the globe.

Who is the current leader of Church Growth International?

Dr. Younghoon Lee is the current Chairman of CGI, inaugurated in 2022 following the death of founder Dr. Yonggi Cho in 2021. Lee is also the senior pastor of Yoido Full Gospel Church. He succeeded Cho in both roles and has continued expanding CGI’s international engagement and mission.

What is the CGI Conference 2026?

The CGI 50th Anniversary Conference is scheduled for October 28–31, 2026, at Yoido Full Gospel Church in Seoul, South Korea. It marks CGI’s half-century of ministry and is expected to draw church leaders from across the world to celebrate the past and seek God’s direction for the next fifty years of global church growth.

What are the 4 pillars of CGI’s church growth principles?

CGI teaches four core principles derived from the Yoido growth model: Positive Thinking (faith-rooted optimism grounded in Scripture), Unshakable Faith (persistent Spirit-empowered conviction), Holy Dreams (God-given clarity of vision for ministry), and Creative Words (speaking in alignment with God’s Word to shape direction and outcomes).

What is the CGI church growth model?

The CGI model centers on the home cell group system, a network of small groups (10–15 people) meeting weekly in homes for prayer, Bible study, and evangelism. Each group is designed to multiply when it grows beyond a set size, with trained assistant leaders becoming group leaders of new cells. This decentralized model, combined with Spirit-empowered leadership, sustained prayer, and clarity of vision, is what CGI teaches as the replicable engine of church growth.

How many seminars has CGI hosted?

To date, CGI has hosted over 600 seminars in 100 countries, with more than 12 million participants. This makes CGI one of the largest pastoral training movements in the history of global Christianity.

Is Loveworld Church Growth International the same as CGI?

No. Loveworld Church Growth International is a separate organization connected to Christ Embassy (Loveworld Incorporated), the ministry founded by Pastor Chris Oyakhilome. It is distinct from Church Growth International (CGI), which is headquartered at Yoido Full Gospel Church in Seoul and was founded by Dr. David Yonggi Cho. They share a similar focus on church growth but have no organizational relationship.