Where was Paul when he and Silas were imprisoned?

Paul and Silas were imprisoned in Philippi, as described in the Book of Acts, particularly in Acts 16:22-24. This narrative illustrates how they were falsely accused and beaten, resulting in their imprisonment in the inner cell of the jail, where they continued to worship and pray. The context of their imprisonment in Philippi highlights the civil and cultural opposition they faced while spreading the Gospel in that region, making it a significant event in their missionary journey.

The other locations—Thessalonica, Corinth, and Ephesus—are mentioned elsewhere in the New Testament, but they did not feature the specific scenario of Paul and Silas's imprisonment. Thessalonica was a city where Paul preached successfully but later faced opposition. Corinth was another key location for Paul, where he established a church and later wrote letters. Ephesus was important for Paul’s ministry and community building, but none of these cities are tied to the incident of imprisonment alongside Silas, making Philippi the clear and correct answer.