Jesus’ mission for His Church

16 The eleven disciples travelled to Galilee, to the mountain where Jesus had directed them. 17 When they saw him, they worshipped, but some doubted. 18 Jesus came near and said to them, ‘All authority has been given to me in heaven and on earth. 19 Go, therefore, and make disciples of all nations, baptising them in the name of the Father and of the Son and of the Holy Spirit, 20 teaching them to observe everything I have commanded you. And remember, I am with you always, to the end of the age.’

Matthew 28:16-20

Introduction

The mountain air was thin. Clean. Matthew felt it in his chest. Galilee stretched below. They had obeyed. The eleven disciples. And many more. They stood on the mountain where Jesus had directed them.

Then they saw Him. The Risen One. They knelt. Worship was the right response.

But Matthew sensed it around him. An unspoken question. Is this real? Not from the eleven. Their gaze was fixed on Jesus. But from others in the crowd. The wonder from the worshippers was warm. But doubt was still palpable in the air. These were ordinary souls. Obedient men. Yet uncertain men.

And then He spoke. To them. To worshippers who doubted. He declared truth that shook their world. He spoke of authority that would compel them. Presence that would sustain them. To make disciples of all nations.

His authority compels. His presence sustains. To make disciples. This is the mission. This is your King’s command.

Listen now to His word. Hear the foundation He lays. All authority. Hear the mandate He gives. Go and make disciples. Hear the power He promises. I am with you always.

On the mountain He spoke to worshippers who doubted. Maybe that is you this morning? Then hear your King.

The commission’s foundation

18 And Jesus came near and said to them, ‘All authority has been given to Me in heaven and on earth.

18 Jesus came near. He did not remain distant. He did not shout from the top of a peak. He stepped in. To worshippers. And to doubters. To ordinary men. His nearness is intentional. His nearness is personal. This is not a distant king issuing edicts. This is a Shepherd closing the gap to His flock. Jesus came near and said to them. He spoke. His authority is conveyed in words. His truth is announced. He addresses them directly. And even as He speaks to them then, He speaks to you this morning.

All authority. Not some authority. Not most authority. All authority. Every ounce of rightful rule. Every shred of cosmic command. Complete authority. Absolute authority. All authority has been given to Me. This authority is not seized. It is bestowed. It is conferred. It is gifted by the Father to the Son. This is lawful authority. This is inherited authority. It is the right of the resurrected King.

He said, All authority has been given to Me in heaven and on earth. No sphere is omitted. No realm is excluded. From the throne of God to the dust of your driveway. His rule touches angels and nations. It spans the unseen and the seen. His authority is universal. His authority is Total.

Think of a skilled surgeon. He enters the operating theatre. He does not shout from the doorway. He comes near. He stands over the patient. He speaks with quiet authority. Every nurse listens. Every instrument is ready. Why? Because his authority is recognised. It is legitimate. It is total in that room. But his authority ends at the hospital door. Not so with Jesus. His authority has no door. No border. No end. It fills heaven. It fills earth. He is the surgeon-King over all creation.

The commission’s foundation is the absolute, conferred, universal authority of the risen King. This foundation means His command does not rest on your confidence, but on His divine right to rule.

His authority is the foundation. It compels our obedience. But what specific command does this King give? What does He order us to do?

The commission’s mandate

19 Go, therefore, and make disciples of all nations, baptising them in the name of the Father and of the Son and of the Holy Spirit, 20 teaching them to observe everything I have commanded you.

19 Go, therefore. The word therefore is a hinge. It swings on what came before. Because all authority is His. Therefore, go. This is not an invitation for volunteers. This is an instruction for subjects. The King has spoken.

And make disciples. This is the central command. The main verb. The primary objective. Not make converts. Not make attendees. Make disciples. A disciple is a learner. A follower. An apprentice. A lifelong transfer of allegiance. A lifelong journey of instruction. Your mission is to produce lifelong followers of King Jesus. Make disciples of all nations. This shatters every boundary. Not only your people. Not only your culture. All nations. Every ethnic group. Every people. The scope is global. The vision is universal. Your neighbour next door and the unreached tribe across the world. Both are mission field.

Baptising them. This is the first step of being a disciple. A public act. A decisive initiation. But note into what? in the name of the Father and of the Son and of the Holy Spirit. This is profound. You are not baptising them into an idea. Or a philosophy. You are immersing them into a name. Into the allegiance of the Triune God. This marks out a new community. A people who belong to this specific God. Baptism is how we identity with our new family.

20 teaching them to observe everything I have commanded you. Discipleship does not end in the water. It begins there. The next step is teaching. And the goal of teaching is not information. It is obedience. To observe. To guard. To keep. To do. You are to teach the whole counsel of Christ. How to think. How to live. How to marry. How to work. How to suffer. How to die. All of it.
Consider a commanding officer. He does not call for a show of hands. He issues an order. The order is rooted in his rank. His authority. Compliance is not debate. It is duty. Christ, our commanding officer has issued His order.

The commission’s mandate is the King’s command to make disciples of all nations by going, by baptising, and by teaching obedience. This mandate means our task is specific, global, and demanded by His authority.

The order is clear. The task is global. But now a sobering question rises. How can ordinary men like us hope to succeed? Where does the power for this impossible mission come from?

The commission’s power

And behold, I am with you always, to the end of the age.’ Amen.

And behold. This is no casual word. This is a trumpet call. A command demanding your full attention. Jesus is about to unveil the supreme reality. The cornerstone of all mission. Do not look away from what He says next.

I am with you. Consider the weight of this promise. He does not say, My principles will guide you. He says, I am with you. This is personal. This is relational. This is the presence of His Person. The crucified, risen, authoritative King pledges Himself to you. He will be your companion.

I am with you always. This defines the scope of His presence. He will not be with you sometimes. He will not stay with you only when you feel worthy. He will not be at your side only in triumph. I am with you always. In the going. In the baptising. In the teaching. In your doubt. In your failure. In your weariness. His presence is your constant. Unbroken. Unending. To the end of the age. This defines the duration. His presence will remain as long as His mission remains. He will not commission you and then leave. He commits to being with you for the entire campaign. This is not a short-term guarantee. It is an eternal pledge. It is as enduring as His mission.

Think of a master stonemason building a great wall. He gives his apprentice a heavy mallet and a chisel. The task is immense. The apprentice’s arms are weak. But then the master places his own hands over the apprentice’s. He says, Behold. I am with you. Until the final stone is set. The task does not change. The weakness does not vanish. But the power to complete it is assured by the master’s presence. I remember teaching Thomas to swim in the deep end. He was afraid. The water was over his head. That wasn’t the time to shout instructions from the side. I got in the water. And swam up next to him. And said, I am right here with you son. I will not leave you. In that moment, Thomas’ ability did not matter. That I was next to him meant everything.

The commission’s power is the King’s pledged presence with His people, always. This promise means our obedience is sustained not by our strength, but by His companionship.

His foundation compels us. His mandate commands us. His promise sustains us. The argument is complete. But now you must ask the question. On what ground does this authority stand? From what well does this presence spring?

Connect to the gospel

We will not understand this commission until we see the crimson root from which it grows. This command to us does not float in air. It is anchored in history. It is built upon a finished work.

All authority is His. That is the fact. But how was it given? At what cost? What is given was won. What is bestowed was purchased. This is not the authority of mere declaration. It is the authority of conquest. The authority Jesus wields is the spoils of war. It is the right of the victorious King. He humbled Himself. He obeyed to the point of death. Even death on a cross. Therefore, God highly exalted Him. The name above every name was bestowed upon Him. The Lamb that was slain is the Lion that reigns. His throne was won through the cross. His command to you is built upon His blood. When He says, All authority, He speaks from Calvary’s hill. He declares the outcome of His sacrifice.

And that promise. I am with you always. What is its ground? It is the pledge of Immanuel. God with us. The very God who took on flesh. Who dwelt among us full of grace and truth. Who died for sinners. Who rose in power. This same Jesus pledges His presence. He does not send a sentiment. He pledges His person. The crucified and risen One is your companion. His presence is mediated by the Holy Spirit, whom He sent because He ascended as the Victor. The presence that sustains you is not a feeling. It is the reality of the risen and glorified Christ.

Thus our mission is not a human enterprise. It is the direct result of accomplished redemption. Powered by the ongoing fellowship of the Redeemer Himself. The command flows from His cross. The promise flows from His empty tomb.

Hear the argument, now anchored forever in the gospel. Jesus’ absolute authority, won at the cross, compels us. And His risen presence, anchored in His resurrection, sustains us. To make disciples of all nations. The foundation is His victory. The mandate is your charge. The power is His fellowship. This is the complete truth.

Now, what does this truth demand?

Application for believers

Believer, the argument is complete. His authority compels. His presence sustains. Your obedience is not a suggestion. It is your calling. This truth must transform you. It must move you from a hesitant worshipper to an active participant.

You may say, but I am like those men on the mountain. I have doubts. I feel ordinary. Precisely. This commission was never for spiritual superheroes. It is for worshippers who know their weakness. For men learning to trust His authority. And rely on His presence. Your inadequacy is not your excuse. It is the prerequisite to rely on His all-sufficiency.

So you must act. This is not about vague intention. It is about measurable obedience. This week, take one concrete step. One step that proves you trust His command and rely on His companionship. Name one person. A colleague. A neighbour. A family member. Share the gospel with them. Speak the truth in love. Or, commit to disciple a newer believer. A friend. A family member. Someone at church. Meet with them. Open the Scripture. Pray together. Lead them to observe all that Christ commanded. Or, if you feel weak and unsure, commit to be discipled. Humble yourself. Find a mature brother. Ask him to teach you. So you may grow strong. So you may then teach others.

You will not do this if you believe your comfort is more precious than your King’s command. You will not do this if you guard your reputation. Or if you trust your own competency. You will do this when you are convinced. Convinced that the glory of the all-authoritative Christ is the supreme treasure. Convinced that His promised presence is enough.

Step out. His authority compels you. His presence sustains you. Obey.

Application for unbelievers

Unbelievers, this text leaves you with no neutral ground. You have heard the command of the King. But you cannot obey a command from a Commander you have rejected. Your greatest need is not to try harder. Your need is to surrender. See your sin for what it is. It is not a simple mistake. It is treason. Rebellion against the rightful Ruler of heaven and earth. Your duty is not self-improvement. It is unconditional surrender.

So your first duty is this. Your only duty. Repent of your rebellion. Turn from your defiance. Believe in the Lord Jesus. Trust in the very One whose authority and presence this text proclaims. Trust that His death paid the penalty for your treason. Trust that His resurrection proves His authority. Then, submit to believer’s baptism. Make this your initial act of following Him. Publicly identify with His name. With His people. Classes start next week. This is your immediate action. Repent. Believe. Be baptised.
Bow to the King you have defied. Bow to Him as Lord. Bow today. Do not delay.

Conclusion

So we depart from this mountain. Not with a fading feeling. But with a final word. The word of our Sovereign.

You have heard the foundation. All authority is His. You have heard the mandate. Go and make disciples of all nations. You have heard the power. Behold, I am with you always. Thus His authority compels. His presence sustains. We have our mission.

Therefore, we go. Not as volunteers for a cause. But as subjects obeying a King. This city is part of all nations. Your neighbour is your first frontier. This is not an optional programme. It is our central calling. It demands that we take up arms. Not with swords, but with the word. Not with coercion, but with compassion. Go and reach Benoni with the gospel, and equip all for life.

You came today as those disciples. Perhaps obedient. Yet uncertain. You leave under the same commission as them. Your adequacy is not required. His authority and presence are. The task is impossible for you. But it is guaranteed by Him.

Let this church rise. Hesitant, ordinary, yet redeemed. Rise and obey. Go to your family. Go to your office. Go to your street. Make disciples. For all authority is His. And He is with you. Always.

Now may the God of peace, who brought up from the dead our Lord Jesus, the great Shepherd of the sheep, by the blood of the everlasting covenant, equip you with everything good to do His will.

Amen.