Luke
Acts 13:15ESV·traditional attribution

After the reading from the Law and the Prophets, the rulers of the synagogue sent a message to them, saying, “Brothers, if you have any word of encouragement for the people, say it.”

John Calvin Reformed @genevareformer

15. After the lecture [reading] of the law. There is no mention made of prayers, and yet, undoubtedly, they were not omitted or foreslowed, [neglected;] but because Luke did intend to set down the sermon made there by Paul, no marvel if he reckon up those things only which did belong unto the order of teaching.

Matthew Henry Presbyterian @wholebiblehenry

Perga in Pamphylia was a noted place, especially for a temple there erected to the goddess Diana, yet nothing at all is related of what Paul and Barnabas did there, only that thither they came (Act 13:13), and thence they departed, Act 13:14.

Commenting on Acts 13:14-41

John Gill Reformed Baptist @doctorgill

And after the reading of the law and the prophets,.... Which was done every sabbath day, Act 15:21 The five books of Moses, which are meant by the law, were divided into sections: Genesis was divided into twelve, Exodus into eleven, Leviticus into ten, Numbers into ten, and Deuteronomy into ten, which in all make fifty three sections: and so by reading one on each...