Paul is teaching a group of Bereans people about Jesus. As his custom was Paul went into the synagogue and on three Sabbath days he reasoned with them from the Scriptures.
9 And the Lord said to Paul one night in a vision, “Do not be afraid, but go on speaking and do not be silent,10 for I am with you, and no one will attack you to harm you, for I have many in this city who are my people.”11 And he stayed a year and six months, teaching the word of God among them.
