After the reading of the law and the prophets (meta tēn anagnōsin tou nomou kai tōn prophētōn). The law was first read in the synagogues till b.c. 163 when Antiochus Epiphones prohibited it. Then the reading of the prophets was substituted for it. The Maccabees restored both. There was a reading from the law and one from the prophets in Hebrew which was interpreted into the Aramaic or the Greek Koinéš for the people. The reading was followed by the sermon as when Jesus was invited to read and to preach in Nazareth (Luk 4:16.). For the service in the synagogue see Schuerer, History of the Jewish People, Div. II, Vol. II, pp. 79ff. It was the duty of the rulers of the synagogue (archisunagōgoi) to select the readers and the speakers for the service (Mar 5:22, Mar 5:35-38; Luk 8:49; Luk 13:14; Act 13:15; Act 18:8, Act 18:17). Any rabbi or distinguished stranger could be called on to speak.
If ye have any word of exhortation for the people (ei tis estin en humin logos paraklēseōs pros ton laon). Literally, if there is among you any word of exhortation for the people. It is a condition of the first class and assumed to be true, a polite invitation. On “exhortation” (paraklēsis) See note on Act 9:31. It may be a technical phrase used in the synagogue (Heb 13:22; 1Ti 4:13).