'Jewish Synagogue' in the Bible
Arriving in Salamis, they proclaimed God's message in the Jewish synagogues. They also had John as their assistant.
When Paul and Barnabas were gone out of the Jewish synagogue, the Gentiles desired them to entertain them on the same subject, the following sabbath.
Now at Iconium [also Paul and Barnabas] went into the Jewish synagogue together and spoke with such power that a great number both of Jews and of Greeks believed (became Christians);
Then they traveled through Amphipolis and Apollonia and came to Thessalonica, where there was a Jewish synagogue.
The brothers immediately sent Paul and Silas away by night to Beroea. When they arrived, they went into the Jewish synagogue.
Paul went into the Jewish synagogue and spoke boldly for three months, discussing and convincing people about matters regarding the kingdom of God.