Acts 16:12-13

12and from there [we came] to Philippi, which is a leading city of the district of Macedonia, a Roman colony. We stayed on in this city for several days;

13and on the Sabbath day we went outside the city gate to the bank of the [Gangites] river, where we thought there would be a place of prayer, and we sat down and began speaking to the women who had come there.