Acts 13:15-21

They constantly everywhere make free to attend the Jewish synagogues on the Sabbath, preaching on the streets and from house to house through the week. Hence they go in and sit in the audience, by physique and costume recognized as Jews by the entire audience. Having passed through the routine of Sabbath service, the leader sends a person back to invite them to speak freely as the Lord will. Thus Paul proceeds with a historic sermon on the plan of salvation in the former dispensation, culminating in the fulfillment of all the types, symbols and ceremonies in Jesus of Nazareth, whom he preaches to them as the veritable Shiloh of prophecy and the Christ.