Acts 18: Paul in Corinth and Apollos in Ephesus

Short answer: Acts 18 follows Paul to Corinth, where he works as a tentmaker, reasons in the synagogue, and receives a vision from the Lord promising protection and many people in the city. The chapter also introduces Apollos, an eloquent Alexandrian who teaches accurately about Jesus but knows only John's baptism, and is corrected by Priscilla and Aquila.

What Acts 18 says

Paul leaves Athens and arrives in Corinth, where he meets Aquila and Priscilla, Jews recently expelled from Rome. Because they share the trade of tentmaking, Paul stays and works with them. Every Sabbath he reasons in the synagogue, persuading both Jews and Greeks. When Silas and Timothy arrive from Macedonia, Paul is compelled by the Spirit to testify that Jesus is the Christ. Opposition and blasphemy arise, so Paul shakes out his clothing, declares himself clean, and turns to the Gentiles. He moves to the house of Justus next door to the synagogue, and Crispus, the synagogue ruler, believes with his whole household. Many Corinthians hear, believe, and are baptized. The Lord speaks to Paul in a night vision, telling him not to be afraid, to keep speaking, and promising that no one will harm him because there are many people in the city. Paul stays a year and six months, teaching the word of God.

When Gallio becomes proconsul of Achaia, the Jews rise up together against Paul and bring him to the judgment seat, accusing him of persuading people to worship God contrary to the law. As Paul is about to speak, Gallio dismisses the charge, saying that if it were a matter of wrong or wicked crime, he would bear with them, but since it concerns words, names, and their own law, they should handle it themselves. He refuses to judge such matters and drives them from the judgment seat. Then the Greeks seize Sosthenes, the ruler of the synagogue, and beat him before the judgment seat, but Gallio pays no attention. Paul remains many more days, then takes leave of the brothers and sails for Syria with Priscilla and Aquila. He had shaved his head in Cenchreae because of a vow. They come to Ephesus, where Paul leaves them, enters the synagogue, and reasons with the Jews. They ask him to stay longer, but he declines, saying he must keep the coming feast in Jerusalem and will return if God wills. He sets sail from Ephesus, lands at Caesarea, greets the assembly, and goes down to Antioch.

After spending some time in Antioch, Paul departs and travels through the region of Galatia and Phrygia in order, strengthening all the disciples. Meanwhile, a Jew named Apollos, an Alexandrian by race, arrives in Ephesus. He is eloquent and mighty in the Scriptures. He had been instructed in the way of the Lord, and being fervent in spirit, he spoke and taught accurately the things concerning Jesus, though he knew only the baptism of John. He begins to speak boldly in the synagogue. When Priscilla and Aquila hear him, they take him aside and explain the way of God more accurately. When Apollos decides to cross into Achaia, the brothers encourage him and write to the disciples to welcome him. When he arrives, he greatly helps those who had believed through grace, for he powerfully refutes the Jews publicly, showing by the Scriptures that Jesus is the Christ.

The chapter closes with the church strengthened through Paul's ongoing travel and through Apollos's corrected and effective ministry. Paul's extended stay in Corinth, the legal dismissal by Gallio, and the quiet work of Priscilla and Aquila all contribute to the gospel's advance. The vision in verses 9 and 10 anchors Paul's courage, and the conversion of Crispus and many Corinthians shows that the Lord indeed had many people in the city. Apollos's story demonstrates that accurate teaching can still be incomplete, and that correction can be done privately and constructively. The chapter does not end with a dramatic conclusion but with steady, faithful labor in different places, as Paul establishes disciples and Apollos helps believers through grace.

Verses that carry the chapter

• “The Lord said to Paul in the night by a vision, “Don’t be afraid, but speak and don’t be silent;” (Acts 18:9) — This verse records the Lord's direct encouragement to Paul in a vision, addressing his fear and commanding him to keep speaking. It carries weight because it shows divine initiative in sustaining Paul's mission during opposition.
• “for I am with you, and no one will attack you to harm you, for I have many people in this city.”” (Acts 18:10) — The Lord promises his presence, protection, and reveals that he has many people in Corinth. This verse grounds Paul's extended ministry in the city and highlights God's sovereign knowledge of those who will believe.
• “but if they are questions about words and names and your own law, look to it yourselves. For I don’t want to be a judge of these matters.”” (Acts 18:15) — Gallio's refusal to judge matters of words, names, and Jewish law effectively dismisses the charges against Paul. This verse marks a legal turning point that allows Paul to continue his work without Roman interference.
• “He began to speak boldly in the synagogue. But when Priscilla and Aquila heard him, they took him aside, and explained to him the way of God more accurately.” (Acts 18:26) — Priscilla and Aquila take Apollos aside and explain the way of God more accurately. This verse shows the importance of private, relational correction and the role of ordinary believers in shaping teachers.

Gospel connection

Acts 18 continues the spread of the gospel from Jerusalem to the Gentile world, showing that the risen Christ remains active through his servants. Paul's vision in verses 9 and 10 echoes God's promises to be with his people, and the many people in Corinth recall the ingathering of Gentiles promised in the prophets. The opposition and legal dismissal in verses 12 through 16 mirror Jesus' own trials before governors, yet the message advances. Apollos's incomplete knowledge in verses 24 through 26 points to the need for the full apostolic teaching about Jesus, which Priscilla and Aquila supply. The chapter fits the wider biblical story by demonstrating that God preserves his messengers, gathers his elect, and corrects his servants so that the truth about Christ may be proclaimed clearly.

Application

This chapter asks readers to trust God's presence when they face opposition or fear. Paul's willingness to work with his hands, to reason patiently in the synagogue, and to stay in Corinth for a year and a half models steady faithfulness rather than quick results. The private correction of Apollos by Priscilla and Aquila invites believers to correct others gently and to receive correction humbly. The vision in verses 9 and 10 encourages those who feel alone in a difficult place to keep speaking, knowing that God has people they cannot yet see. Readers are also reminded that ministry continues through travel, letters, and ordinary work, not only through public preaching.

Biblical fidelity check

The chapter does not claim that Paul was acquitted by a formal trial, only that Gallio refused to judge the matter. It does not say what happened to Sosthenes after he was beaten, nor does it explain why the Greeks seized him. It does not record Paul's inner thoughts about the vow in verse 18 or specify its nature. The text does not tell us how long Apollos stayed in Ephesus or exactly what Priscilla and Aquila explained to him. It also does not claim that all Jews in Corinth opposed Paul, since Crispus and others believed. Where the text is silent, we should not fill in details.

Questions for study

1. What does Paul's decision to work as a tentmaker alongside Aquila and Priscilla reveal about his approach to ministry and support?
2. How does the Lord's vision in verses 9 and 10 address Paul's likely fears, and what does it promise specifically?
3. Why might Gallio have refused to judge the charges against Paul, and what effect did that have on the spread of the gospel?
4. What can we learn from the way Priscilla and Aquila corrected Apollos, and how does that model apply to disagreements today?
5. How does the chapter show both human opposition and divine encouragement working together in the advance of the message about Jesus?

Keep reading

Related studies: Acts 10 Bible Study, Acts 11 Bible Study, Acts 12 Bible Study, Acts 13 Bible Study.

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FAQ

Why did Paul leave the synagogue in Corinth and turn to the Gentiles?

According to verses 5 and 6, Paul testified that Jesus was the Christ, but when the Jews opposed him and blasphemed, he shook out his clothing, declared himself clean, and said he would go to the Gentiles. This was a response to persistent rejection, not a permanent abandonment of Jewish people.

What was the outcome of Paul's trial before Gallio?

Gallio refused to judge the matter, saying it concerned words, names, and Jewish law rather than wrong or wicked crime. He drove the accusers from the judgment seat, and Paul was not punished by the Roman authority.

Who was Apollos and what did Priscilla and Aquila do for him?

Apollos was an eloquent Alexandrian Jew, mighty in the Scriptures, who taught accurately about Jesus but knew only the baptism of John. Priscilla and Aquila took him aside and explained the way of God more accurately, after which he greatly helped believers in Achaia.