The Apostle Paul: From Persecutor to Gospel Preacher

The man whose letters teach us the gospel of grace once dragged Christians from their homes and sent them to prison. When I read Paul’s life, I need to remember those people as well as the work Christ later entrusted to him. His conversion did not make his violence less wicked. It shows how fully Jesus can forgive a sinner and call that forgiven man to serve Him.

Saul Before Damascus

Paul was a Jew born in Tarsus of Cilicia and brought up in Jerusalem, where he trained under Gamaliel. He was also a Roman citizen by birth, as Acts 22:28 records. Years after his conversion, he described his education and former zeal while defending himself before a Jerusalem crowd.

“I am indeed a Jew, born in Tarsus of Cilicia, but brought up in this city at the feet of Gamaliel, taught according to the strictness of our fathers’ law, and was zealous toward God as you all are today.”

Acts 22:3, NKJV

He understood their zeal because he had once shared it. His training had made him knowledgeable and disciplined, but it had not made his opposition to Jesus right. A person can be scrupulous about religious observance and still resist the Lord he claims to honor. I need to test what I believe against Scripture instead of assuming that sincerity or a respected teacher makes my convictions true.

Christ would later use Paul’s knowledge of Scripture, familiarity with the Greek-speaking world, and legal standing as a Roman citizen. None of those advantages made him an apostle or removed his guilt. As he served Christ, he could draw on that background, but he still had to acknowledge his persecution as sin for which he needed forgiveness.

Acts 7-9 shows how violent Saul’s opposition had become. He approved of Stephen’s death and guarded the clothes of those who killed him. He then pursued believers in their homes.

As for Saul, he made havoc of the church, entering every house, and dragging off men and women, committing them to prison.

Acts 8:3, NKJV

Luke’s description “made havoc” translates lumainomai, a word that can mean to ravage or devastate. Saul was not limiting himself to debates with public teachers; he entered homes and dragged men and women to prison. The households he harmed were real, and understanding his later forgiveness should never require us to minimize what he did to them.

Saul was traveling to Damascus with authority to arrest more believers when the risen Jesus confronted him. He was still pursuing the church, intent on bringing its members bound to Jerusalem, when a light from heaven stopped his journey.

Then he fell to the ground, and heard a voice saying to him, “Saul, Saul, why are you persecuting Me?” And he said, “Who are You, Lord?” Then the Lord said, “I am Jesus, whom you are persecuting. It is hard for you to kick against the goads.”

Acts 9:4-5, NKJV

Jesus asked, “Why are you persecuting Me?” Saul had attacked His followers, but the Lord spoke of those attacks as persecution of Himself. That helps explain Paul’s later teaching about the church as Christ’s body in 1 Corinthians 12. As their Head, Christ identifies Himself with His people in their suffering.

By calling him “Saul, Saul,” Jesus confronted the man responsible for these arrests while giving him an opportunity to respond. Saul discovered that the Jesus he opposed was alive. He answered the Lord and entered Damascus blind, led by the hand of his companions. For three days he could not see and neither ate nor drank. The Lord spoke to Ananias, a disciple in Damascus, and told him that Saul was praying.

Ananias knew Saul’s reputation and reminded the Lord of the harm he had done and the authority he now carried. The Lord answered by explaining the work He intended to give him.

But the Lord said to him, “Go, for he is a chosen vessel of Mine to bear My name before Gentiles, kings, and the children of Israel. For I will show him how many things he must suffer for My name’s sake.”

Acts 9:15-16, NKJV

The calling included Gentiles and kings, as well as Israel, but it also included suffering for Christ’s name. The Lord was giving Saul a ministry, with no promise that usefulness would make his life comfortable. Ananias obeyed, entered the house, and addressed him as a brother. Saul received his sight, was baptized as a believer, and began preaching that Jesus is the Son of God.

Later, when Saul came to Jerusalem, the disciples were afraid and did not believe he had become a disciple. Barnabas brought him to the apostles and explained both his encounter with the Lord and his bold preaching at Damascus. He offered credible testimony about a changed man. The believers were not being asked to disregard Saul’s history merely because he now claimed to follow Christ.

I need to distinguish God’s forgiveness from the trust of people whom a repentant sinner has harmed. God forgives the sinner who repents and believes, but the damage remains real, and those who were hurt may need time and evidence before they can trust that person again. Barnabas helped the church recognize Saul’s change through truthful testimony. A forgiven person should be willing to walk honestly before others, rather than demand that a claim of repentance immediately restore their trust.

The Apostle and the Gospel of Grace

An apostle is a commissioned representative, someone sent with a message and authority. Scripture can use the term broadly for a messenger, but Paul’s commission came directly from the risen Christ. He had seen the Lord and received the gospel through His revelation. Paul explained that source of his authority in Galatians 1-2.

But I make known to you, brethren, that the gospel which was preached by me is not according to man. For I neither received it from man, nor was I taught it, but it came through the revelation of Jesus Christ.

Galatians 1:11-12, NKJV

That did not make him an isolated preacher accountable to no one. Other apostles recognized his ministry, churches commended him for missionary work, and fellow believers traveled and served with him. He reported what God had done when he returned from a journey. Yet the gospel itself had not been supplied by a committee or fashioned to suit his audience. Christ had entrusted it to him.

Paul’s message concerned what Jesus had actually done to save sinners.

For I delivered to you first of all that which I also received: that Christ died for our sins according to the Scriptures, and that He was buried, and that He rose again the third day according to the Scriptures.

1 Corinthians 15:3-4, NKJV

Jesus is the eternal Son who became fully man without ceasing to be fully God. He lived without sin and willingly gave Himself to be slain as the perfect sacrifice for our sins. Wicked human beings tortured and crucified Him; His blood was truly shed, and His death accomplished our redemption before His burial and bodily resurrection. Paul proclaimed these events as the basis of our salvation, not as religious language for becoming more hopeful or improving ourselves.

The Father did not punish, curse, abandon, strike, bruise, or pour wrath on Jesus. The Father and Son remained united in the saving work Christ willingly accomplished. Jesus gave Himself for the sins of the whole world, so God’s offer of forgiveness is genuine for every person. A sinner can resist His grace and reject Him, but everyone who repents and believes in the Lord Jesus is forgiven and born again. The study on The Gospel examines that message more fully.

Paul could never compensate for persecuting the church by becoming an impressive missionary. Neither his later achievements nor his suffering could cancel his guilt. He needed the Savior he preached, which is why his teaching about justification by faith is so closely connected with his own life.

In Romans 3-5, Paul explains how a sinner can stand righteous before God. The Greek word dikaioō, used for justification, carries the sense here of declaring someone righteous. God declares the believer righteous on the basis of Christ’s blood and death. He does not dismiss the evil of sin or accept us because we have done enough good to cancel our wrongdoing. Christ has dealt with sin, and His bodily resurrection confirms the sufficiency of His saving work.

Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ.

Romans 5:1, NKJV

Paul announced that same forgiveness during his first missionary journey, preaching in Antioch of Pisidia.

Therefore let it be known to you, brethren, that through this Man is preached to you the forgiveness of sins; and by Him everyone who believes is justified from all things from which you could not be justified by the law of Moses.

Acts 13:38-39, NKJV

Faith receives Christ’s gift rather than earning it, and repentance does not purchase salvation either. We turn from rebellion and entrust ourselves to the Savior who has provided what we cannot secure. Law-keeping, family heritage, and religious rituals give us no claim to justification. Good works follow as the fruit of new birth; they neither earn salvation nor keep us saved. Our peace with God rests in Christ, even while our obedience still needs correction and growth.

Paul believed before being baptized, and he taught baptism as an obedient public identification with Christ’s death, burial, and resurrection. The water does not produce regeneration, complete justification, or seal salvation. Christ saves, and the believer is baptized because he now belongs to Him.

For Christ did not send me to baptize, but to preach the gospel, not with wisdom of words, lest the cross of Christ should be made of no effect.

1 Corinthians 1:17, NKJV

Paul distinguishes preaching the gospel from performing baptisms. I cannot reconcile that distinction with the claim that baptism itself causes salvation. Nor can I use salvation by grace to excuse ignoring a command Christ gave. Baptism declares the believer’s union with Christ and the new life we are called to live in obedience to Him. Baptism in the Bible considers those passages in more detail.

In Ephesians 1-2, Paul explains God’s saving grace and the life of those He makes new. The Holy Spirit indwells every genuine believer and seals him as belonging to God.

In Him you also trusted, after you heard the word of truth, the gospel of your salvation; in whom also, having believed, you were sealed with the Holy Spirit of promise.

Ephesians 1:13, NKJV

The Spirit is a divine Person, not an impersonal force. He gives new life and makes obedience possible. His seal provides assurance, and He does not abandon a true believer, even though believers are warned not to grieve Him. Our security rests on Christ’s accomplished work and the Spirit who remains with us.

That assurance gives no permission for lawlessness. Growth can be uneven, and believers still struggle with sin, but a profession of faith without evidence of new life is not sufficient reason to call someone regenerate, or born again. Paul directs us to Christ for assurance while calling us to take our conduct seriously. Love for one another and obedience to Christ should characterize people who have received grace. Church discipline also belongs under Christ’s authority, as a congregation addresses sin among its members. None of these responsibilities earns the salvation He gives.

Mission, Churches, and Hard Roads

Before the missionary journeys of Acts 13-20, Saul had been sent to Tarsus when threats forced him to leave Jerusalem. Barnabas later brought him from there to Antioch in Syria, where they taught the congregation together for a year. Jewish and Gentile believers worshiped Christ there, and the church became the sending congregation for their first recorded missionary journey. The Holy Spirit called Barnabas and Saul to the work, and the believers prayed and fasted before laying hands on them and sending them out.

They traveled first to Cyprus, where Luke calls him “Saul, who also is called Paul” in Acts 13:9. Jesus had not changed his name at conversion; Luke still called him Saul after the Damascus road. Saul was his Hebrew name, and Paul his Roman name. Luke’s use of Paul becomes prominent as the account follows his work among Gentiles.

From Cyprus they traveled into Asia Minor, preaching in Pisidian Antioch, Iconium, Lystra, and Derbe. Antioch in Pisidia was a different city from the church’s home in Syria. They preached in synagogues, reasoning from the Scriptures, and brought the message to Gentiles as well. Opposition drove them from some cities, but they returned to strengthen the disciples and appoint elders. They were establishing churches whose believers needed continuing instruction and care.

The growth of Gentile churches brought a dispute to Jerusalem in Acts 15. Some insisted that Gentile believers had to be circumcised and keep the law of Moses to be saved. Peter testified that God had purified their hearts by faith, and Paul and Barnabas reported His work among them. The apostles and elders rejected law-keeping as a condition of salvation. Gentiles did not have to become Jews to be justified, though they were instructed to turn from idolatrous practices and live in holiness and fellowship.

Paul’s second major journey began after a sharp disagreement with Barnabas about taking John Mark. They separated over that decision, with Barnabas taking Mark while Paul traveled with Silas. Timothy later joined Paul’s team, and the gospel work continued despite the painful break between coworkers.

The Holy Spirit directed Paul and his companions into Macedonia, where they preached in Philippi and Lydia, a businesswoman, believed. Paul and Silas were also beaten and imprisoned there. After an earthquake shook the prison, they spoke the Lord’s word to the jailer and his household. The confinement that restricted their movements gave them an opportunity to bring Christ’s message to the man responsible for guarding them.

The journey continued through Thessalonica and Berea, then Athens and Corinth. The synagogue hearers at Berea already knew Scripture and examined it to test what Paul taught. In Athens, he addressed people unfamiliar with that background, explaining the Creator’s authority before announcing resurrection and judgment. Some mocked, while others believed. He took account of what his hearers understood without changing the gospel to obtain the response he wanted.

During his third major journey, Paul spent an extended period teaching in Ephesus. A silversmith named Demetrius warned fellow craftsmen that people turning from idols threatened their trade in shrines of Artemis, called Diana in the NKJV. Their anger led to a riot. Their religion was tied to their income, so conversion affected more than what someone believed privately. It changed what people were willing to worship and support with their money.

On his return route, Paul called the Ephesian elders to meet him at Miletus. He warned that false teachers would threaten the church, including men who would arise from among the leaders themselves. He reminded the elders that he had warned them through tears, and he entrusted them to God and the word of His grace. His concern continued beyond the time he had spent preaching in Ephesus. The believers still needed shepherds who would guard the truth and care for them.

Paul was preparing to go to Jerusalem, knowing that chains and afflictions awaited him. He explained why he would continue.

But none of these things move me; nor do I count my life dear to myself, so that I may finish my race with joy, and the ministry which I received from the Lord Jesus, to testify to the gospel of the grace of God.

Acts 20:24, NKJV

He was not pursuing danger to display courage. He intended to complete the ministry Christ had given him, even when comfort and safety could not be preserved. I need to remember that when I admire Paul’s boldness. God has not called all of us to follow his route, but obedience to Christ cannot depend on avoiding every costly consequence.

At Jerusalem, a hostile crowd seized Paul in the temple, and Roman soldiers intervened. He asked the commander for permission to address the people.

But Paul said, “I am a Jew from Tarsus, in Cilicia, a citizen of no mean city; and I implore you, permit me to speak to the people.”

Acts 21:39, NKJV

That request identified Paul as a Jew from Tarsus. When he later faced an unlawful scourging, he invoked his Roman citizenship to object to the mistreatment. Using his legal rights did not replace his dependence on Christ. During his confinement, he spoke before the Jewish council and the governors Felix and Festus. He appealed to Caesar during the hearing before Festus and afterward testified before King Agrippa while awaiting the journey to Rome. His appeal provided a lawful route there, where he would continue bearing witness to Christ.

The voyage included a shipwreck, but Paul reached Rome under guard. Hardship had repeatedly brought him before people he might not otherwise have met. He had been stoned at Lystra, beaten and imprisoned elsewhere, and subjected to slander and lengthy confinement. Those who opposed him remained responsible for their wrongdoing, while the Lord used even those circumstances to make the gospel known.

Paul’s Letters and Care for the Church

Paul’s letters bring the doctrine he preached into the lives of churches and individuals. The Corinthians needed correction about division and disorder; the Galatians needed to reject teaching that made law-keeping a condition of acceptance. Romans explained God’s righteousness in the gospel. These congregations could not separate what they believed about Christ from how they treated one another or understood salvation.

Ephesians addresses life in the church and home as well as spiritual warfare. Philippians teaches joy in Christ amid suffering, while the Thessalonian letters address grief and questions about His return. Timothy and Titus received instructions for guarding doctrine and ordering church life. Paul applied Christ’s authority to marriage, giving, spiritual gifts, discipline, and leadership because the Lord’s claim extended into how people actually lived.

Paul also asked for practical help: in 2 Timothy 4:11 he told Timothy to bring Mark because he was useful for ministry. Paul had refused to take him on the second journey, but his request shows that he was now willing to receive Mark’s help.

Peter recognized the wisdom God had given Paul and spoke about his letters.

as also our beloved brother Paul, according to the wisdom given to him, has written to you, as also in all his epistles, speaking in them of these things.

2 Peter 3:15-16, NKJV

In the rest of verse 16, Peter warns that unstable people twist Paul’s writings as they do the other Scriptures. I cannot treat those letters as optional commentary while claiming to honor Jesus’ words. The Lord who taught during His earthly ministry also appointed apostles and gave inspired Scripture through them. Paul served Christ’s authority; he did not establish a competing religion of his own.

The instructions to Timothy and Titus therefore continue to guide the church. Paul gave qualifications for elders and deacons, required sound teaching, and told Titus to appoint qualified elders. I understand those offices and the church’s authoritative teaching leadership to belong to biblically qualified men. Every believer is valuable to Christ and gifted to serve Him, but we must exercise those gifts within the order He has given. I cannot dismiss that order as outdated cultural material when it comes to us through His apostle.

Qualified leaders are responsible to teach truth, resist false doctrine, and help the congregation live in holiness and love. The position calls a man to serve people for whom Christ died; it gives him no claim to superiority and cannot make him deserving of salvation.

Unlike Romans and Galatians, Hebrews does not name its writer at the beginning. I believe Paul wrote it, taking the internal clues and early testimony together. Hebrews 13:23 mentions Timothy, and the closing word of grace also fits Paul’s circle of ministry. Its sustained reasoning from the Old Testament and exaltation of Christ agree with the apostle’s teaching.

Early testimony associated Hebrews with Paul, though opinions differed about its composition. Eusebius records Clement of Alexandria’s view that Paul wrote it and Luke translated it. That is a historical explanation to weigh, not a process the book itself describes. The early papyrus manuscript P46 includes Hebrews among Paul’s letters, directly after Romans. The distinctive style of Hebrews may reflect help from a secretary or translator, as well as its form as a written sermon.

I find the combined evidence persuasive for Paul, without making Hebrews’ authority depend on that conclusion. It is Scripture because God inspired it. A fuller examination of the evidence is available in Who Wrote Hebrews?

Suffering and Finishing the Race

Luke closes Acts with Paul under guard in Rome, receiving visitors and still teaching about Christ.

preaching the kingdom of God and teaching the things which concern the Lord Jesus Christ with all confidence, no one forbidding him.

Acts 28:31, NKJV

He was watched by a soldier, yet people could come to hear him. He reasoned about Jesus from the Law and the Prophets, with some believing and others refusing. He could not control their response, but he could keep speaking faithfully. Imprisonment had restricted his movements without putting an end to his ministry.

Acts does not narrate Paul’s death. In 2 Timothy 4, writing near the end of his life, he faced that prospect directly. People had deserted him, and opponents had done him harm, but he said the Lord had stood with him and strengthened him so the message could be proclaimed.

I have fought the good fight, I have finished the race, I have kept the faith.

2 Timothy 4:7, NKJV

He looked back on a finished race and ahead to the crown the righteous Judge would give. His confidence rested in the risen Lord even as he faced death and acknowledged that people had deserted him. The grace that forgave him had also taught him to endure. His suffering had not paid for his salvation, and it did not prove that he had missed God’s will.

Saul’s religious training could not make his persecution right, and his grievous past did not make him beyond mercy when he repented. I need to remember both when I consider whom God can save. The people he harmed were real, but Christ forgave him and taught him to spend his life serving those he once opposed. His later faithfulness points to the Lord’s mercy without erasing Paul’s responsibility to obey.

My Final Thoughts

I do not want to admire Paul’s endurance while forgetting the grace he needed. Neither sincerity before his conversion nor service afterward could earn his acceptance with God. Christ saved him and entrusted him with the gospel, then sustained him through years of costly obedience. If we have received that mercy, we have reason to keep obeying when doing so is difficult. We are serving the Lord who forgave us, and He has not abandoned us.