Foundations of Evangelism Lesson 21 of 249

The Heart of an Evangelist

Developing the spiritual posture for faithful witness

If the first lesson established why we must evangelize, this lesson addresses who we must become. Evangelism is not merely a skill to be learned or a task to be performed—it flows from a certain kind of heart.

Technique without heart produces cold, mechanical witness. Passion without wisdom produces careless, counterproductive encounters. What we need is the combination of a burning heart and a clear head.

In this lesson, we will examine the inner life of an evangelist. What spiritual posture is necessary for faithful, fruitful witness? How do we cultivate the kind of heart that naturally overflows with the Gospel? And what are the enemies of the evangelistic spirit that we must guard against?

A Heart of Compassion

When Jesus looked at the crowds, He did not see an interruption to His schedule. He saw something that moved Him to His core:

"When he saw the crowds, he had compassion for them, because they were harassed and helpless, like sheep without a shepherd."

— Matthew 9:36

The Greek word for compassion here is splagchnizomai—a visceral term that refers to the bowels, which the ancients considered the seat of deep emotion. Jesus felt the lostness of the people in His gut. It was not an abstract theological concept; it was a grief that moved Him to action.

This same compassion should characterize the evangelist. We must learn to see people as Jesus sees them—not as projects or statistics, not as opponents to defeat or problems to solve, but as image-bearers of God who are "harassed and helpless," desperately in need of a Shepherd.

Self-Examination

When you look at your unbelieving neighbor, coworker, or family member, what do you feel? Annoyance? Indifference? Superiority? Or do you feel something of that gut-level compassion that moved Jesus?

Compassion is not something we can manufacture. It comes from spending time with Jesus, allowing His heart to become our heart. It comes from meditating on our own lostness before Christ found us. It comes from genuinely knowing and loving non-Christians, not merely targeting them.

A Heart of Humility

The evangelist must never forget that they are a beggar telling other beggars where to find bread. We have nothing that we did not receive (1 Corinthians 4:7). Our salvation is entirely a gift of grace, not a reward for our merit.

This humility should shape how we share the Gospel. We do not come as superior beings looking down on the lost. We come as forgiven sinners pointing to the Savior.

Classic Quote

"Evangelism is one beggar telling another beggar where to find food." — D.T. Niles

Humility protects us from two dangers:

  • Arrogance — the insufferable attitude that repels people from the Gospel before they ever hear it
  • Despair — the false belief that we are not good enough, smart enough, or eloquent enough to be used by God

The humble evangelist knows that effectiveness does not depend on their abilities but on God's power. Paul came to Corinth "in weakness and in fear and much trembling," yet his message was effective because it came "in demonstration of the Spirit and of power" (1 Corinthians 2:3-4). God delights to use weak vessels so that the glory goes to Him alone.

A Heart of Courage

Humility does not mean timidity. The evangelist needs courage—not the absence of fear, but the willingness to speak despite the fear.

"And now, Lord, look upon their threats and grant to your servants to continue to speak your word with all boldness."

— Acts 4:29

Notice: the early Christians did not pray for the threats to be removed. They prayed for courage to keep speaking in the face of those threats.

Where does this courage come from?

  • Confidence in the message — If you are convinced that Jesus Christ is the risen Lord and that salvation is found in no one else, you have something worth risking reputation for
  • Confidence in God's sovereignty — The results are not in your hands. Your job is to be faithful; God's job is to save
  • Fear of God over fear of man — When the fear of God is paramount, the fear of man fades
  • The example of the saints — If they could face lions, flames, and swords, surely we can face an awkward conversation

"Do not fear those who kill the body but cannot kill the soul. Rather fear him who can destroy both soul and body in hell."

— Matthew 10:28

A Heart of Prayer

The evangelist is utterly dependent on God. Only the Holy Spirit can convict of sin, open blind eyes, and raise the spiritually dead. Therefore, the evangelist must be a person of prayer.

"Pray also for me, that words may be given to me in opening my mouth boldly to proclaim the mystery of the gospel."

— Ephesians 6:19

If the great apostle Paul needed prayer support, how much more do we?

Prayer should saturate our evangelism:

  • Before we speak — we pray for opportunities, for the right words, and for the hearts of those we will encounter
  • While we speak — we maintain an attitude of dependence, silently asking God to guide the conversation
  • After we speak — we pray for the seed that was planted, asking God to water it and bring it to fruition

The evangelist who does not pray is like a soldier going into battle without weapons. Prayer is not peripheral to evangelism—it is essential.

A Heart of Love for God

Behind every other quality is this foundation: a deep, personal, passionate love for God. We cannot commend what we do not cherish. We cannot share joy we do not possess. Cold hearts do not produce compelling witnesses.

"Now when they saw the boldness of Peter and John, and perceived that they were uneducated, common men, they were astonished. And they recognized that they had been with Jesus."

— Acts 4:13

There was something about them—a boldness, a joy, a radiance—that could only be explained by their relationship with Christ.

How do we cultivate this love? Through the ordinary means of grace: reading Scripture, prayer, worship, fellowship with other believers, partaking of the Lord's Supper. These are not mere religious duties. They are the channels through which we commune with Christ and our love for Him is deepened.

Warning

The evangelist must guard against becoming so busy in ministry for God that we neglect our relationship with God. If our doing outpaces our being, our witness will become hollow.

Enemies of the Evangelistic Heart

Several enemies threaten to quench the evangelistic spirit. We must be aware of them:

  • Complacency — When we become comfortable in our Christian bubble, we lose urgency for the lost
  • Cynicism — Past rejections can harden our hearts. We begin to view unbelievers with suspicion rather than compassion
  • Busyness — The tyranny of the urgent crowds out the truly important. We fill our schedules with good things and have no time left for Gospel conversations
  • Prayerlessness — When we stop praying for the lost, we stop caring about the lost
  • Sin — Unconfessed sin quenches the Spirit and robs us of power and joy

Conclusion

Evangelism begins in the heart before it ever reaches the lips. We need hearts marked by:

  • Compassion for the lost
  • Humility about ourselves
  • Courage to speak
  • Dependence on prayer
  • Love for God above all

These qualities are not natural to us. They are the fruit of the Spirit's work in our lives. Therefore, we must continually return to Christ, confessing our coldness, asking Him to rekindle our passion, and trusting Him to transform us from the inside out.

The goal is not to become a professional evangelist. The goal is to become the kind of person from whom the Gospel naturally overflows—because we have been so captivated by Christ that we cannot help but speak of Him.

In the next lesson, we will look at the supreme example of evangelism: the ministry of Jesus Himself. There is no better model for the heart and practice of faithful witness.

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Discussion Questions

  1. Which of the heart qualities discussed (compassion, humility, courage, prayer, love for God) do you most need to grow in? What specific steps can you take to cultivate that quality?
  2. Which 'enemy of the evangelistic heart' (complacency, cynicism, busyness, prayerlessness, sin) poses the greatest threat to you personally? How can you guard against it?
  3. Think of a non-Christian in your life. How does your heart typically respond when you think of them? Ask God to give you the compassion of Christ for that person.