21 For Moses from the earliest times has had his preachers in every town, being read, as he is, Sabbath after Sabbath, in the various synagogues."
Acts 15:21 Cross References - WNT
Luke 4:16
16 He came to Nazareth also, where He had been brought up; and, as was His custom, He went to the synagogue on the Sabbath, and stood up to read.
Acts 13:15
15 After the reading of the Law and the Prophets, the Wardens of the synagogue sent word to them. "Brethren," they said, "if you have anything encouraging to say to the people, speak."
Acts 13:27
27 For the people of Jerusalem and their rulers, by the judgement they pronounced on Jesus, have actually fulfilled the predictions of the Prophets which are read Sabbath after Sabbath, through ignorance of those predictions and of Him.