How does Scripture function in evangelism?

Question 1088

Evangelism is the proclamation of the gospel to those who do not yet believe. But what exactly should we proclaim? Our personal experiences? Philosophical arguments? The benefits of Christianity? While these may have a place, Scripture teaches that the Bible itself is the essential tool in evangelism. God’s Word is the power that brings people to faith.

The Power of the Word

Romans 10:17 states the principle clearly: “Faith comes from hearing, and hearing through the word of Christ.” People do not come to saving faith through human cleverness, emotional manipulation, or social pressure. They come to faith through the Word of God applied by the Holy Spirit.

Paul described the gospel as “the power of God for salvation to everyone who believes” (Romans 1:16). The word itself—δύναμις (dunamis), from which we get “dynamite”—indicates explosive, transforming force. This power is not in our presentation skills but in the message we proclaim. The gospel is powerful because it is God’s truth about sin and salvation.

Isaiah 55:10-11 uses the image of rain accomplishing its purpose: “So shall my word be that goes out from my mouth; it shall not return to me empty, but it shall accomplish that which I purpose, and shall succeed in the thing for which I sent it.” God’s Word is efficacious—it achieves what God intends. Our task is to proclaim it faithfully; the results belong to God.

The Content of Evangelistic Proclamation

What content should our evangelism include? Scripture defines the gospel message. Paul summarised it in 1 Corinthians 15:3-4: “Christ died for our sins in accordance with the Scriptures, that he was buried, that he was raised on the third day in accordance with the Scriptures.” The gospel is the historical facts of Jesus’ death and resurrection interpreted according to their biblical significance—He died “for our sins.”

Evangelistic proclamation includes the bad news before the good news. People must understand they are sinners under God’s judgment (Romans 3:23; 6:23) before the news of salvation means anything to them. Scripture provides the categories—sin, guilt, judgment, atonement, grace—that make the gospel intelligible. Without these categories, the cross makes no sense.

Peter’s sermon at Pentecost (Acts 2:14-41) demonstrates Scripture-saturated evangelism. He quoted Joel, explained the Psalms, and applied them to Jesus’ death and resurrection. The result? Those who heard were “cut to the heart” and asked what they should do. Three thousand were saved that day through the proclamation of the Word.

Philip the evangelist, when he encountered the Ethiopian eunuch reading Isaiah 53, “beginning with this Scripture… told him the good news about Jesus” (Acts 8:35). He didn’t start with religious philosophy or personal testimony; he started with Scripture and explained how it points to Jesus.

Scripture in Conversation

In personal evangelism, Scripture functions in several ways. It provides the authoritative message we proclaim. We’re not offering opinions but delivering God’s declaration. “Thus says the Lord” carries weight that “I think” never can.

Scripture answers objections. When people raise questions about suffering, other religions, or the exclusivity of Jesus, we can point them to what God has revealed. Our answers are not merely clever; they’re grounded in divine truth.

Scripture convicts. “The word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and of spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart” (Hebrews 4:12). We cannot convict people of sin; only God’s Word, applied by the Spirit, can penetrate the heart.

Scripture provides assurance. When someone comes to faith, their confidence rests not on feelings but on God’s promises. “Whoever believes in him is not condemned” (John 3:18). “Everyone who calls on the name of the Lord will be saved” (Romans 10:13). These truths, rooted in Scripture, provide the foundation for assurance.

The Limits of Human Wisdom

Paul explicitly rejected dependence on human wisdom in evangelism: “When I came to you, brothers, I did not come proclaiming to you the testimony of God with lofty speech or wisdom. For I decided to know nothing among you except Jesus Christ and him crucified… that your faith might not rest in the wisdom of men but in the power of God” (1 Corinthians 2:1-2, 5).

This doesn’t mean we shouldn’t be thoughtful or answer questions. But it does mean our confidence is in the message, not the messenger. Clever arguments may win debates but not hearts. Only the Word of God, proclaimed in dependence on the Spirit, brings eternal life.

We live in a culture that prizes experience and personal stories. Testimonies have value—they demonstrate the gospel’s power to transform. But a testimony is only as good as the gospel content it contains. “Jesus changed my life” needs to be accompanied by “Here’s who Jesus is and what He did.”

Conclusion

Scripture functions in evangelism as the power that brings people to faith. The Word convicts of sin, reveals Jesus as Saviour, and provides the truth that the Spirit uses to regenerate hearts. Our task is to proclaim the biblical gospel clearly and faithfully, trusting God to accomplish His purposes through His Word. We are ambassadors delivering a message from our King—and the message is found in Scripture.

“So faith comes from hearing, and hearing through the word of Christ.” Romans 10:17