Let’s be clear about this—we’re not just tallying converts. That changes everything. We’re asking who shaped the trajectory of Christianity more than anyone else, whose methods still echo in sermons and revival tents today.
Defining “Evangelist”: More Than Just a Preacher
Evangelism isn’t just public speaking with spiritual intent. That’s a common reduction. An evangelist, in the classical sense, is someone who not only proclaims the gospel but builds systems for it to spread. Think organizer, strategist, cultural translator. Paul of Tarsus didn’t just deliver sermons; he planted churches, trained leaders, wrote letters that became scripture. That’s evangelism as infrastructure.
Modern Misconceptions About Evangelism
Today, the word often gets reduced to street preaching or televised crusades. But historically, it’s broader. The early church had “evangelists” as a distinct role—second only to apostles in Ephesians 4:11. They were the spark plugs, the ones who moved between communities, reigniting faith and establishing order. Not every fiery speaker qualifies. Some are performers. Others are theologians in disguise. The real evangelist? They leave behind movements, not just memories.
The Fourfold Impact Test
To judge “greatest,” we need criteria. I propose four: reach (how many heard?), depth (how many changed?), durability (did it last?), and innovation (did they change how we do this?). By that standard, a figure like Jonathan Edwards—brilliant, influential—falls short on reach. His 1741 “Sinners in the Hands of an Angry God” sermon is legendary, but it was one moment. One town. One revival. Impressive, yes. Defining? We’re far from it.
Billy Graham: The Stadium Phenomenon
No evangelist in history has addressed more people face-to-face than Billy Graham. His career spanned six decades, from 1949 to 2005. He held over 400 crusades in 185 countries. The 1957 New York City crusade alone lasted 16 weeks, filled Madison Square Garden every night, and reached an estimated 2.3 million people—live, in person. Add television, radio, and satellite broadcasts, and the number balloons to over two billion. Let that sink in.
Media Mastery Before the Digital Age
Graham wasn’t just a preacher; he was a media pioneer. His team produced films, launched radio programs, and negotiated TV slots like network execs. The 1954 Harringay Crusade in London drew over 1.5 million people—this in post-war Britain, a society drifting from faith. Yet Graham filled arenas. His secret? Clean-cut image, political neutrality (mostly), and a message stripped of denominational jargon. He preached a simple gospel: repent, believe, be transformed. No deep theology. No controversy. That simplicity fueled his scale.
But Did He Build Anything Lasting?
Here’s where it gets tricky. Graham’s organization, the Billy Graham Evangelistic Association, still operates. It trained thousands of evangelists through the Schools of Evangelism. Yet, unlike Wesley or Paul, Graham didn’t plant a denomination. His legacy is influence, not institutions. Converts were referred back to local churches. That was by design—but it means measuring long-term impact is harder. We know 3.2 million people made “decisions for Christ” at his events (according to BGEA records), but follow-up data? Spotty. Some studies suggest only 15–20% remained active in church five years later. That’s not failure. But it’s not transformation on a societal level either.
Paul of Tarsus: The Original Game-Changer
Let’s go back. 1st century. No printing press. No mass transit. No common language except Latin and Greek—and Paul didn’t even speak Latin. Yet within 30 years, Christianity spread from Jerusalem to Rome. How? Paul. A Pharisee turned missionary, he traveled over 10,000 miles on foot and by ship. Three major missionary journeys. Churches planted in Ephesus, Corinth, Philippi, Thessalonica. Letters written that now form 13 books of the New Testament.
Innovation in Methodology
Paul didn’t just preach. He contextualized. In Athens, he quoted Greek poets. In synagogues, he used scripture. To Gentiles, he downplayed Jewish law. This adaptability—what some call “incarnational ministry”—was revolutionary. He became “all things to all people,” as he put it. And that’s exactly where modern evangelists miss the point: it’s not about delivery, but translation. He didn’t just announce truth—he made it speak.
The Ripple That Became a Wave
Paul’s influence wasn’t immediate. His letters were circulated, copied, studied. By 100 AD, Christian communities dotted the Mediterranean. By 313 AD, Constantine legalized Christianity. Was Paul solely responsible? No. But remove him from history, and it’s unlikely Christianity ever escaped Judaism’s shadow. His theology of grace, salvation by faith, inclusion of Gentiles—these weren’t just ideas. They were tectonic shifts. And let’s be honest: without Paul, we probably wouldn’t be having this conversation at all.
John Wesley: The System Builder
Now consider Wesley. Anglican priest. Oxford scholar. In 1738, he had a conversion experience at a Moravian meeting in London—heart “strangely warmed.” That changes everything. He didn’t retreat. He took to the fields. Literally. Preached to coal miners in Bristol because churches wouldn’t have him. Developed small groups called “societies,” “classes,” and “bands” for accountability and discipleship.
Structure as Strategy
Wesley was obsessive about organization. He appointed lay preachers, created circuits, kept detailed journals and spreadsheets (yes, spreadsheets in the 1700s). By 1784, he had 71,000 followers in Britain. In America? 140,000 by 1800. Methodism exploded. Why? Because he didn’t rely on charisma alone. He built a machine. One that kept running when he died. Today, Methodists number over 80 million worldwide. That’s durability.
The Social Reformer Angle
Wesley didn’t just save souls. He attacked slavery, cared for the poor, promoted education. He was among the first to advocate for animal welfare. His evangelism wasn’t separate from justice—it fueled it. That integration is why historians link Methodism to the rise of the labor movement and public health reforms in 19th-century England. Can you say the same about most revivalists? I find this overrated—the idea that evangelism and social action are opposed. Wesley knew better.
Graham vs. Wesley vs. Paul: The Comparison
Paul had reach across the Roman world—maybe 50 major cities visited. Wesley? Focused on Britain and America, but built institutions. Graham? Global, media-savvy, but left no movement structure. In terms of total lives touched directly, Graham wins. For long-term ecclesiastical impact, Wesley. For foundational, civilization-level shift? Paul.
Scale of Influence Over Time
Paul’s writings are read weekly in an estimated 2.3 billion Christian services today. Wesley’s hymns—written with his brother Charles—are still sung; “Hark! The Herald Angels Sing” alone is performed over 100,000 times a year. Graham’s sermons? Archived, yes, but rarely revisited. Which has deeper roots? The problem is, we measure influence by visibility, not depth. And visibility fades.
Cultural Penetration Index
Let’s assign rough scores (1-10). Paul: reach 8, depth 10, durability 10, innovation 9. Wesley: 7, 9, 9, 8. Graham: 10, 7, 6, 8. By that math, Paul wins. But—and this is a big but—modern evangelism operates in a different world. Mass media rewards Graham’s model. Yet the data is still lacking on whether short-term decisions equal long-term discipleship. Experts disagree. Honestly, it is unclear.
Frequently Asked Questions
Was Billy Graham the most influential evangelist of the 20th century?
By public recognition, yes. He was named in Gallup’s “Most Admired Man” list 61 times—more than any other person in history. He advised presidents from Truman to Obama. His crusades were national events. But influence isn’t just access to power. It’s shaping belief. And while Graham re-energized American evangelicalism, he didn’t redefine it. That honor might go to someone like Charles Finney, who introduced “anxious benches” and emotional appeals in the 1800s.
Did Paul invent evangelism?
No. The term appears in the Gospels—Philip is called “the evangelist” in Acts. But Paul systematized it. He took a scattered practice and turned it into a reproducible model. He wasn’t the first, but he was the first to do it at scale with strategy. That’s why he’s often called the “father of Christian missions.”
Can a woman be considered the greatest evangelist?
Absolutely. Phoebe is described as a “deacon” and “benefactor” in Romans 16—she likely carried Paul’s letter to Rome. Then there’s Catherine Booth, co-founder of the Salvation Army. She preached to over 100,000 people in her lifetime, challenged gender norms, and built a global movement. Yet she’s rarely mentioned in “greatest” lists. Why? Because history remembers platforms, not substance. And that’s exactly where our collective memory fails us.
The Bottom Line
So who is the greatest? If you value raw numbers, it’s Billy Graham. If you care about lasting institutions, John Wesley. But if you measure by transformative impact—how one person’s work altered the course of history, faith, and culture—then Paul of Tarsus stands apart. He didn’t just spread a message. He redefined a religion. He crossed borders, broke traditions, wrote theology that still shapes billions. We may never know how many came to faith through him. But we do know this: without Paul, Christianity as we know it wouldn’t exist. And that changes everything.