The Biblical Foundation of Missions: The Why, What, How, Who, and When
“All power is given unto me in heaven and in earth. Go ye therefore, and teach all nations… and, lo, I am with you always, even unto the end of the world.”
(Matthew 28:18–20)
Introduction
Among the five New Testament passages that record what is commonly called the Great Commission, Matthew’s account stands as the most comprehensive. In a single, unified command, Scripture addresses the authority, purpose, content, scope, and duration of the church’s missionary mandate. These words are not merely historical; they are the final standing order of the Lord Jesus Christ to every local church and to every believer within it. To read this passage carefully is to meet the theological and practical foundation of Christian missions.
The Why of Missions: Obedience to Divine Authority
Too often, Matthew 28:19–20 is isolated from verse eighteen, yet Christ’s declaration of authority is inseparable from His command. Without it, the church’s missionary task would rest on assumption rather than divine mandate.
Why, then, have followers of Jesus Christ proclaimed His death, burial, and resurrection both within their own cultures and across the world? The gospel confronts competing worldviews and asserts an exclusive claim to eternal hope. The authority behind this claim does not rest in the messenger, but in the One who sends them.
Jesus Christ, through His substitutionary death and victorious resurrection, has reestablished divine authority over all creation—material and spiritual. His redemptive work is eternal and infinite, fully sufficient to secure salvation for all who believe. Missions exist because Christ reigns, and obedience to His authority compels proclamation.
The What of Missions: Making Disciples
The central command of the Great Commission is not simply to go, but to make disciples. The Greek construction places the imperative on disciple-making, with going as the necessary means by which it occurs. Evangelism, therefore, is not an end, but the beginning of a transformative process.
True disciple-making involves instruction rather than manipulation, clarity rather than coercion. Conversion must be understood, embraced, and followed by obedience. For this reason, Jesus included baptism and teaching as integral components of His command.
Baptism by immersion in the name of the Father, Son, and Holy Spirit serves as a public identification with Christ. Instruction in “all things” that Jesus taught grounds the believer in biblical truth, a process enabled and guided by the Holy Spirit (John 14:26).
This framework ties missions directly to the local church. Missions are not merely preaching events or individual conversions. Biblically defined missions result in disciples who are baptized, gathered, instructed, and set up within local churches that continue the work of Christ through Spirit-directed sending.
The How of Missions: Sent with Authority
The very word mission implies sending. Derived from the Latin mitto and reflected in the Greek apostellō, the concept carries the idea of authorized departure for a designated purpose. Christ’s command “Go ye therefore”—flows directly from His authority and carries both urgency and obligation.
The participial structure of the command may be given “as you go,” emphasizing that disciple-making is not limited by geography or circumstance. Wherever believers find themselves, they are responsible to engage in Christ’s mission. The emphasis stays not on movement alone, but on faithful obedience to the task of making disciples.
The Who of Missions: The Church and the Nations
The command was given to the apostles as representatives of the first church in Jerusalem, setting up the local church as the authorized steward of the missionary mandate. Because baptism and teaching are church ordinances and functions, missions cannot be detached from the corporate body of believers.
At the same time, the responsibility is individual. Every believer, by virtue of being a disciple, shares accountability to obey Christ’s command—regardless of vocational calling.
The recipients of the mission are explicitly defined: all nations. Acts 1:8 clarifies this scope geographically, while Revelation 5:9–10 reveals the ultimate fulfillment—redeemed people from every tribe, language, and nation worshiping Christ. Missions are global in reach and redemptive in purpose.
The When of Missions: Until the End of the Age
Christ left no ambiguity concerning the duration of the mission. From the moment a believer becomes a disciple until the end of earthly life—and indeed until the end of the world—the command stays binding.
The book of Acts records the Holy Spirit’s ongoing direction of missionary activity, showing that while locations and roles may change, the responsibility never expires. The promise of Christ’s continual presence assures believers that the mission endures until history itself concludes.
Conclusion: A Command Accompanied by a Promise
The Great Commission was not reserved for the first-century church alone. Its grammatical structure and stated duration make it clear that it applies to every generation of believers. To receive Christ is to become His disciple—and to become His disciple is to inherit His mission.
This command is not meant to intimidate, but to inspire. Christ not only commissions His followers; He goes with them. His abiding presence ensures guidance, strength, protection, and provision as His people labor in obedience. Therefore, the church has every reason—and every responsibility—to be fully engaged in the mission of God until He returns.