Disciples Making Disciples

with Glenn Tatum


Helping Christians live out biblical truth with purpose and grace.


The Witness of the Disciple

“But you will receive power when the Holy Spirit has come upon you, and you shall be My witnesses both in Jerusalem, and in all Judea and Samaria, and even to the end of the earth.”
Acts 1:8 (LSB)


When the Structure Is Sound, the Light Can Be Seen

Every structure tells a story.

A cracked foundation reveals neglect.
Weak supports reveal shortcuts.
A missing roof leaves everything beneath it exposed.

The Christian life is no different.

Discipleship is not a collection of disconnected spiritual habits—it is a life being carefully built. Scripture often speaks this way: Christ as the chief cornerstone, believers as living stones, and the church rising like a holy temple to the Lord. A disciple’s life is meant to be strong, ordered, and complete.

And when that life is rightly built, something unmistakable happens—it becomes visible.

That visibility is what Scripture calls witness.

Witness is not an optional add-on for mature believers or extroverted Christians. It is the natural outcome of a life grounded in Christ, shaped by worship, strengthened by obedience, guarded in spiritual warfare, and empowered by the Holy Spirit. Without a witness, the structure is unfinished. The roof is missing. And what God designed to display His glory is left exposed.

A Life Built From the Ground Up

Before Jesus ever sent His disciples out, He built them up.

He called them to Himself.
He taught them who the Father is.
He showed them how to worship in spirit and truth.
He instructed them to deny themselves and follow Him.
He warned them about the battle they would face.
He promised them strength beyond themselves.

Only then did He say, “You shall be My witnesses” (Acts 1:8).

Witness is not where discipleship begins—it is where discipleship leads.

If Christ is not the foundation, our witness lacks authority.
If worship is shallow, our witness lacks authenticity.
If obedience is compromised, our witness lacks credibility.
If we misunderstand the battle, our witness becomes reactive or fearful.

But when the foundation is secure and the structure is sound, witness becomes less about pressure and more about overflow.

Empowered to Witness, Not Pressured to Perform

One of the greatest misunderstandings about evangelism is the belief that God expects us to generate spiritual power on our own.

He does not.

Jesus told His disciples plainly that they would receive power when the Holy Spirit came upon them (Acts 1:8). Power does not originate with the disciple—it is given by God. Witness flows from empowerment, not personality.

This is why fear often accompanies attempts to witness when the Spirit’s role is minimized. When we believe witnessing depends on having the right words, perfect timing, or flawless arguments, anxiety takes over. Scripture presents witness differently: it is the work of the Spirit through yielded people.

Peter reminds believers that we are a chosen people, called out of darkness for a purpose—to proclaim the excellencies of the One who saved us (1 Peter 2:9). Witness begins with identity. We speak because we have been changed. We testify because we have been rescued.

Witness Begins Where You Are

Jesus laid out a clear pattern for witness: Jerusalem, Judea, Samaria, and the ends of the earth (Acts 1:8). This was not merely geography—it was strategy.

Witness begins close.
It begins locally.
It begins with people you already know.

For most disciples, “Jerusalem” looks like home, family, workplace, neighborhood, and daily relationships. God rarely starts with the distant before addressing the near. Faithfulness nearby prepares us for fruitfulness farther away.

And this pattern reminds us that witness is not about choosing between local or global mission—it is about embracing both as part of the same calling.

The Message We Carry Must Be Clear

A strong structure requires clarity in its design. In the same way, a disciple’s witness must be anchored to a clear gospel.

Paul summarized the gospel simply and powerfully: Christ died for our sins, was buried, and was raised on the third day (1 Corinthians 15:3–4). This message is not complicated, but it is profound. It addresses humanity’s deepest problem—sin—and God’s gracious solution—Jesus Christ.

Scripture helps us articulate this clearly. Passages in Romans trace the reality of sin, the cost of separation from God, the love displayed at the cross, and the call to respond in faith. Tools like the “Roman Road” are not scripts but guides—rails that keep the message centered on Christ rather than ourselves.

Every disciple should be able to explain the gospel simply, biblically, and personally.
Not perfectly.
Faithfully.

Divine Appointments Are Not Accidents

Some of the most powerful moments of witness happen unexpectedly.

Philip did not wake up planning to meet an Ethiopian official on a desert road. He simply obeyed the Spirit’s prompting (Acts 8:26–40). He listened. He asked questions. He opened Scripture. And God did the work.

That pattern still holds.

God orchestrates moments we could never arrange—a conversation that turns spiritual, a question asked at just the right time, a shared struggle that opens a door to hope. These are not interruptions; they are invitations.

Paul encouraged believers to remain watchful in prayer and wise in their interactions with outsiders (Colossians 4:2–6). Witness grows where prayerful attentiveness meets humble readiness.

Preparation matters.
Sensitivity matters.
Obedience matters.

Our Witness Is Both Personal and Global

The roof of a structure must cover the entire building, not just one section. In the same way, the disciple’s witness extends beyond personal conversations to God’s global mission.

The book of Acts shows a Spirit-led movement: the church sends, supports, and obeys. Paul and Barnabas were commissioned by a local church and directed by the Holy Spirit (Acts 13:1–4). Later, God redirected their plans to reach new regions (Acts 16:6–10).

Witness expands as God wills, not as we control.

Every disciple has a role. Some go. Many send. All pray. No one is excluded.

Paul reminds us that the gospel advances because people are sent, speak, and are heard (Romans 10:13–15). The chain breaks if any link is missing.

When the Roof Is in Place, the Light Shines

Witness is what makes the disciple’s life visible to the world.

A foundation without a roof leaves the structure exposed. In the same way, discipleship without witness leaves faith inward-facing and incomplete. God did not build His people merely for stability, but for display—for His glory to be seen.

This does not mean living loudly or artificially. It means living faithfully, visibly, and intentionally. It means speaking when the Spirit prompts and trusting God with the outcome.

Transformed lives point to a transforming Savior.

A Final Word: Built to Bear Witness

Jesus did not say, “Try to be witnesses.”
He said, “You shall be My witnesses.”

This is not pressure—it is promise.

If Christ is your foundation,
if worship shapes your heart,
if obedience orders your life,
if you stand firm in God’s strength,

then witness will follow.

Not because you are strong—but because He is.

Your life, carefully built in Christ, is meant to be seen. Not to draw attention to you, but to point others to the One who saves.

What’s Next: The Disciple as a Servant

If witness is the visible roof of a disciple’s life, servanthood is the posture that holds everything together. Jesus not only sent His followers to speak in His name—He called them to walk in His steps. In the next lesson, we will explore how true discipleship expresses itself through humble service, sacrificial love, and obedience patterned after Christ, who “came not to be served, but to serve.”



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