Acts 9:20

9:20 and immediately he began to proclaim Jesus in the synagogues, saying, “This man is the Son of God.”

Acts 17:1

Paul and Silas at Thessalonica

17:1 After they traveled through Amphipolis and Apollonia, they came to Thessalonica, where there was a Jewish synagogue.

Acts 18:19

18:19 When they reached Ephesus, Paul left Priscilla and Aquila behind there, but he himself went into the synagogue and addressed the Jews.