Acts 17:10

10. Such was the state of feeling in the city that Paul and Silas saw no prospect of accomplishing good by further efforts, while the attempt would have been hazardous to the lives of brethren. (10) "Then the brethren immediately sent away Paul and Silas by night, to Berea; who, when they arrived, went into the synagogue of the Jews."

This city lies about sixty miles south-west of Thessalonica. It contains, at the present day, a population of fifteen or twenty thousand, and was, doubtless, still more populous then. Here again the apostles find a synagogue, and make it the starting point of their labors.