Commentaries:
Robertson's Word Pictures (NT)
Appointed (tacamenoi). First aorist middle participle of tassw. Formal arrangement as in Matthew 28:16 when Jesus appointed the mountain for his meeting in Galilee.
In great number (pleionev). Comparative of poluv, "more than a few."
Expounded (ecetiqeto). Imperfect middle of ektiqhmi, to set forth, as in Acts 11:4; Acts 18:26. He did it with detail and care and spent all day at it, "from morning till evening" (apo prw ewv esperav). In N.T. only here, Acts 4:3 and Luke 24:29, though common word.
Persuading them concerning Jesus (peiqwn autouv peri tou Ihsou). Conative present active participle, trying to persuade. It was only about Jesus that he could make good his claim concerning the hope of Israel (verse Acts 28:20). It was Paul's great opportunity. So he appealed both to Moses and to the prophets for proof as it was his custom to do.
Other Robertson's Word Pictures (NT) entries containing Acts 28:23:
Acts 11:4
Acts 13:43
Acts 18:6
Acts 19:8
Acts 28:16
Philemon 1:22
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