Acts 18
Acts chapter 18 continues Paul’s second missionary journey and records his ministry in Corinth, his return journey, and the introduction of Apollos. The chapter highlights God’s faithfulness in sustaining His servants, the power of the Gospel in difficult places, and the importance of sound teaching and discipleship.
1. Paul’s Ministry in Corinth (Acts 18:1–11)
Paul arrives in Corinth, one of the most influential and morally corrupt cities in the Roman world. There he meets Aquila and Priscilla, Jewish believers who had recently come from Rome after Emperor Claudius expelled the Jews.
Paul works alongside them as a tentmaker while preaching in the synagogue each Sabbath.
When Silas and Timothy arrive, Paul devotes himself fully to preaching:
“testifying to the Jews that Jesus is the Christ.” (v. 5)
As often happens in Acts, some believe while others oppose him. After significant resistance, Paul declares:
“From now on I will go to the Gentiles.” (v. 6)
This does not mean Paul abandons Jewish evangelism altogether, but it reflects the continued expansion of the Gospel among the Gentiles.
Among the converts is Crispus, the ruler of the synagogue, whose faith demonstrates the Gospel's power to reach even influential leaders.
Facing opposition, Paul receives a vision from the Lord:
“Do not be afraid, but speak, and do not keep silent; for I am with you.” (vv. 9–10)
This encouragement reminds Paul that success in ministry ultimately depends upon God's presence and purposes.
The Lord also reveals:
“I have many people in this city.” (v. 10)
Before they have even believed, God knows those who will respond to the Gospel. Paul remains in Corinth for eighteen months teaching the Word of God.
2. Paul Before Gallio (Acts 18:12–17)
Jewish opponents bring Paul before Gallio, the Roman proconsul of Achaia, accusing him of promoting unlawful worship.
Gallio dismisses the charges, recognizing that the dispute concerns Jewish religious matters rather than Roman law.
This event is significant because it provides a measure of legal protection for the early Christian movement within the Roman Empire.
Luke again demonstrates that Christianity is not a political rebellion, but a faith centered on the Lordship of Christ.
3. Paul Returns Toward Antioch (Acts 18:18–23)
After an extended ministry in Corinth, Paul departs with Priscilla and Aquila.
He briefly visits Ephesus, reasoning in the synagogue and leaving behind Priscilla and Aquila to continue ministry there.
Paul then returns through:
This effectively concludes his second missionary journey.
After some time, Paul begins what is commonly called his third missionary journey, traveling through Galatia and Phrygia:
“strengthening all the disciples.” (v. 23)
This highlights an important theme in Acts: ministry involves not only evangelism but also ongoing discipleship and encouragement.
4. Apollos in Ephesus (Acts 18:24–28)
Luke introduces Apollos, an eloquent and knowledgeable Jewish believer from Alexandria.
He is described as:
However, his understanding is incomplete because he knows only the baptism of John.
Priscilla and Aquila privately instruct him:
“and explained to him the way of God more accurately.” (v. 26)
Their example demonstrates humility, discipleship, and the importance of doctrinal accuracy.
Afterward, Apollos becomes a powerful defender of the Christian faith:
“showing from the Scriptures that Jesus is the Christ.” (v. 28)
Like Paul, Apollos bases his message on the Old Testament's fulfillment in Jesus.
Major Themes in Acts 18:
Key Takeaway
Acts 18 shows that Gospel ministry often takes place in difficult environments, yet God remains present with His people. Whether through Paul’s perseverance in Corinth, the encouragement of fellow believers like Aquila and Priscilla, or the growth of Apollos in understanding, the chapter demonstrates that Christ continues building His Church through faithful proclamation of His Word and the strengthening of His disciples.