Global Christianity: The History of World Missions and the Expansion of the Church

Introduction

When the apostle Paul stood in Athens and declared that God "made from one man every nation of mankind to live on all the face of the earth" (Acts 17:26), he articulated a vision that would shape two millennia of Christian expansion. The history of Christian missions is the story of the most remarkable expansion of any religion in human history. From its origins in first-century Palestine, Christianity has spread to every continent and culture, becoming the world's largest religion with over 2.4 billion adherents. This expansion has not been uniform or unambiguous: it has been accompanied by both extraordinary acts of self-sacrifice and service and by the complicity of the church in colonialism, cultural imperialism, and the suppression of indigenous cultures.

The modern missionary movement, which began in the late eighteenth century with William Carey's mission to India in 1793, transformed the global landscape of Christianity. The nineteenth century saw an explosion of missionary activity from Europe and North America, with thousands of missionaries going to Africa, Asia, and the Pacific. The twentieth century witnessed the dramatic shift of Christianity's center of gravity from the Global North to the Global South, with the majority of the world's Christians now living in Africa, Asia, and Latin America. By 2020, approximately 1.3 billion Christians lived in the Global South compared to 860 million in the Global North—a complete reversal from the situation in 1900.

This article examines the theological foundations, historical development, and contemporary challenges of Christian world missions. I argue that understanding this history is essential not merely for historical interest but for grasping the nature of Christianity itself as an inherently missionary faith. The expansion of the church reveals both the power of the gospel to transcend cultural boundaries and the persistent temptation to confuse the gospel with particular cultural expressions.

Biblical Foundation

The Great Commission and the Apostolic Mandate

The theological foundation of Christian mission is the Great Commission: "Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you" (Matthew 28:19-20). This command, given by the risen Christ to his disciples, has been the driving force of Christian mission throughout history. Its scope—"all nations" (Greek: panta ta ethnē)—establishes the universal horizon of Christian mission, while its content—making disciples, baptizing, and teaching—defines the nature of missionary activity. The parallel commission in Acts 1:8 adds geographical specificity: "You will be my witnesses in Jerusalem and in all Judea and Samaria, and to the end of the earth."

David Bosch, in his magisterial Transforming Mission (1991), argues that the Great Commission must be understood within the broader narrative of God's mission throughout Scripture. The call of Abraham in Genesis 12:1-3 includes the promise that "in you all the families of the earth shall be blessed"—a missionary vision that anticipates the universal scope of the gospel. The prophetic vision of Isaiah 49:6 declares that God's servant will be "a light for the nations, that my salvation may reach to the end of the earth." The New Testament presents Jesus as the fulfillment of this missionary purpose, and the church as the community called to participate in God's redemptive work among all peoples. This biblical trajectory reveals that mission is not a New Testament innovation but the culmination of God's redemptive plan from the beginning.

The Missio Dei and Trinitarian Mission

Contemporary missiology has developed the concept of missio Dei (the mission of God) to ground Christian mission in the nature and purposes of God rather than in human initiative. This theological framework, articulated by Karl Barth and developed by missiologists like Lesslie Newbigin and David Bosch, emphasizes that mission is not primarily a human activity but God's own work in the world. God is a missionary God who sends the Son into the world (John 3:16-17), who sends the Spirit to empower the church's witness (Acts 1:8), and who is working through history to bring all things under the lordship of Christ (Ephesians 1:10).

The church's mission is participation in God's own mission, not a human program that God endorses. This understanding has profound implications: it means that mission is not optional for the church but constitutive of its identity. As Emil Brunner famously stated, "The church exists by mission as fire exists by burning." The missio Dei framework also challenges the church to discern where God is already at work in the world and to join in that work, rather than assuming that the church brings God to places where God is absent. This Trinitarian understanding of mission—rooted in the sending activity of Father, Son, and Holy Spirit—provides the theological foundation for understanding the church's missionary calling as participation in the very life and work of the triune God.

Historical Development of World Missions

The Early Church and the Expansion to the Roman World

The first three centuries of Christian history witnessed remarkable missionary expansion throughout the Roman Empire and beyond. The apostle Paul's missionary journeys, documented in Acts 13-28, established the pattern of urban evangelism, church planting, and the development of indigenous leadership. By the end of the first century, Christian communities existed throughout Asia Minor, Greece, and Rome. The second and third centuries saw further expansion into North Africa, where figures like Tertullian (c. 155-220) and Cyprian (c. 200-258) developed Latin theology, and into Mesopotamia and Persia, where Syriac Christianity flourished.

This early expansion occurred without centralized missionary organizations or state support. Instead, it relied on the witness of ordinary Christians—merchants, soldiers, slaves—who carried the gospel as they traveled for trade or were displaced by persecution. The martyrdom of Christians, rather than deterring the faith's spread, often attracted converts. Tertullian's famous observation that "the blood of the martyrs is the seed of the church" captured this paradoxical dynamic.

William Carey and the Modern Missionary Movement

William Carey's An Enquiry into the Obligations of Christians to Use Means for the Conversion of the Heathens (1792) launched the modern missionary movement by arguing that the Great Commission is binding on all Christians in every age, not merely on the apostles. This seemingly obvious claim was actually controversial in Carey's context, where hyper-Calvinist theology had led many to believe that God would save the elect without human missionary effort. Carey's mission to India, which began in 1793, established the pattern for the modern missionary enterprise: learning the local language (Carey eventually translated the Bible into Bengali, Sanskrit, and dozens of other Indian languages), translating the Bible, establishing schools and hospitals, and planting indigenous churches.

Carey's work inspired the formation of numerous missionary societies in Britain and North America. The London Missionary Society (1795), the Church Missionary Society (1799), the American Board of Commissioners for Foreign Missions (1810), and dozens of other organizations sent thousands of missionaries to Africa, Asia, and the Pacific throughout the nineteenth century. By 1900, an estimated 15,000 Protestant missionaries were serving overseas, supported by millions of Christians in sending countries.

The Nineteenth Century: Expansion and Controversy

The nineteenth century's missionary expansion was accompanied by significant theological debates about the relationship between the gospel and culture, the role of indigenous leadership, and the relationship between evangelism and social action. These debates, which continue to shape contemporary missiology, reflect the complexity of the missionary enterprise and the difficulty of distinguishing between the gospel and the cultural forms in which it is expressed.

One extended example illustrates these tensions: the controversy over ancestor veneration in China. When Jesuit missionaries first entered China in the sixteenth century, led by Matteo Ricci (1552-1610), they adopted a policy of accommodation, arguing that Confucian rites honoring ancestors were civil ceremonies compatible with Christian faith. Dominican and Franciscan missionaries disagreed, viewing these practices as idolatrous. The resulting "Chinese Rites Controversy" lasted for over a century and eventually led to papal condemnation of the Jesuit position in 1715. This decision effectively ended Catholic missionary work in China for over a century and raised fundamental questions about the relationship between Christianity and culture. Protestant missionaries in the nineteenth century faced similar dilemmas: Should converts be required to abandon all traditional practices? Could Christianity be expressed in indigenous cultural forms? These questions remain central to contemporary missiology.

The nineteenth century also saw the development of the "three-self" principle, articulated by Henry Venn of the Church Missionary Society and Rufus Anderson of the American Board. They argued that missionary work should aim to establish churches that were self-governing, self-supporting, and self-propagating. This vision challenged the paternalism that characterized much missionary work and anticipated later emphases on indigenous leadership and contextualization.

The Twentieth Century: Decolonization and the Shift to the Global South

The most significant development in twentieth-century Christianity has been the dramatic shift of the church's center of gravity from the Global North to the Global South. Philip Jenkins's The Next Christendom (2002) documented this shift, arguing that the future of Christianity lies in Africa, Asia, and Latin America, where the church is growing rapidly and where Christianity is being expressed in new and vital forms. This shift has profound implications for the theology, worship, and mission of the global church.

The decolonization movements of the mid-twentieth century forced Western missionaries and mission agencies to reconsider their methods and assumptions. The 1910 Edinburgh Missionary Conference, often considered the birthplace of the modern ecumenical movement, had included almost no representatives from the Global South. By the 1974 Lausanne Congress on World Evangelization, leaders from Africa, Asia, and Latin America played prominent roles, and the Lausanne Covenant explicitly affirmed the need for cultural sensitivity and indigenous leadership in mission.

Andrew Walls, in The Missionary Movement in Christian History (1996), argues that Christianity has always been a "translated" religion, taking root in diverse cultures and being expressed in indigenous forms. The shift to the Global South represents not the decline of Christianity but its continued vitality and adaptability. African, Asian, and Latin American Christians are now sending missionaries to Europe and North America, reversing the traditional flow of missionary activity.

Contemporary Challenges and Scholarly Debates

Gospel and Culture: The Ongoing Debate

One of the most persistent debates in missiology concerns the relationship between the gospel and culture. Lamin Sanneh's Translating the Message (1989) argues that Christianity is inherently translatable—that the gospel can be expressed in any language and culture without losing its essential content. Sanneh contrasts this with Islam, which maintains Arabic as the sacred language of the Quran. The translatability of Christianity, Sanneh argues, affirms the value of indigenous cultures and languages.

However, critics argue that this optimistic view underestimates the ways in which Western cultural assumptions have been conflated with the gospel message. Kwame Bediako, the Ghanaian theologian, has argued that African Christianity must develop its own theological voice, drawing on African cultural resources and addressing African questions, rather than simply adopting Western theological formulations. This debate raises fundamental questions: What is the irreducible core of the gospel that must be preserved in every cultural context? What aspects of Christianity are culturally conditioned and can be adapted or discarded?

Mission and Colonialism: Assessing the Legacy

The relationship between Christian missions and European colonialism remains one of the most contentious issues in mission history. Critics argue that missionaries were complicit in colonial exploitation, that they destroyed indigenous cultures, and that they imposed Western values under the guise of evangelism. Stephen Neill's A History of Christian Missions (1986) acknowledges these failures while also documenting the ways in which missionaries often opposed colonial policies, defended indigenous rights, and preserved indigenous languages and cultures through Bible translation and literacy work.

The debate is not merely historical but has contemporary implications. Some argue that Western missionary activity should cease entirely, given its colonial legacy. Others contend that this view patronizes Christians in the Global South, many of whom are themselves engaged in missionary work and who value the gospel they received through missionary activity. The challenge is to acknowledge the failures of the past while affirming the validity of cross-cultural mission when conducted with cultural sensitivity and in partnership with indigenous churches.

Evangelism and Social Action: The Holistic Mission Debate

The relationship between evangelism and social action has been debated throughout mission history. The 1974 Lausanne Covenant affirmed that "evangelism and socio-political involvement are both part of our Christian duty," but tensions remain. Some evangelicals emphasize evangelism as the primary task of mission, viewing social action as secondary or as a means to evangelism. Others, influenced by liberation theology and the holistic mission movement, argue that proclamation and demonstration of the gospel are inseparable.

David Bosch's Transforming Mission argues for a both/and approach, rejecting false dichotomies between evangelism and social action. He contends that mission must address both spiritual and material needs, both individual conversion and social transformation. This debate reflects deeper theological questions about the nature of salvation, the kingdom of God, and the church's role in society.

Conclusion

The history of Christian missions is a complex and contested story that includes both extraordinary acts of faith and service and significant failures of cultural sensitivity and political complicity. From the apostolic expansion documented in Acts to the contemporary reality of a truly global church, the missionary movement has been central to Christianity's identity and development. Understanding this history is essential for contemporary Christians who seek to participate faithfully in God's mission to the world.

Several insights emerge from this historical survey. First, Christian mission is grounded not in human initiative but in the nature of God as a sending God—Father, Son, and Holy Spirit—who invites the church to participate in the divine mission. Second, the gospel has proven remarkably translatable across cultures, taking root in diverse contexts and being expressed in indigenous forms. This translatability affirms the value of human cultures while also challenging cultural assumptions that have been conflated with the gospel. Third, the shift of Christianity's center of gravity to the Global South represents not the decline of Christianity but its continued vitality. The future of Christian mission will increasingly be shaped by African, Asian, and Latin American Christians who bring their own cultural perspectives and theological insights to the global church.

The ongoing debates about gospel and culture, mission and colonialism, and evangelism and social action reflect the complexity of the missionary enterprise. These are not merely academic questions but practical challenges that every generation of Christians must address. How can the church proclaim the gospel faithfully while respecting cultural diversity? How can Christians acknowledge the failures of the past while affirming the validity of cross-cultural mission? How can the church address both spiritual and material needs without reducing the gospel to either individual salvation or social transformation?

For ministry professionals, the history of world missions provides resources for understanding the global dimensions of the church's calling and for engaging in cross-cultural ministry with both theological depth and cultural sensitivity. The missionary movement demonstrates that Christianity is not a Western religion but a global faith that transcends cultural boundaries. It also reminds us that mission is not optional for the church but constitutive of its identity. As the church continues to participate in God's mission in the twenty-first century, it must learn from both the successes and failures of the past, seeking to proclaim the gospel faithfully in ways that honor the dignity of all peoples and cultures.

Implications for Ministry and Credentialing

The history of world missions provides essential resources for contemporary ministry in an increasingly globalized world. Ministry professionals must understand the global dimensions of the church's calling and engage in cross-cultural ministry with both theological depth and cultural sensitivity. This includes recognizing that Christianity is not a Western religion but a global faith, learning from Christians in the Global South who bring fresh perspectives to theology and mission, and avoiding the mistakes of past missionary movements that conflated the gospel with particular cultural expressions. For credentialing in church history and missiology, Abide University offers programs that engage this important and complex history.

For ministry professionals seeking to formalize their expertise, the Abide University Retroactive Assessment Program offers a pathway to academic credentialing that recognizes prior learning and pastoral experience.