Acts 21:28

crying … help The cry as if an outrage had been committed, and they, the strangers visiting Jerusalem, were the persons who could afford the best testimony to what had been done. For had they not seen and heard Paul in Ephesus and elsewhere?

This … people They would intimate that he was bringing the whole nation into contempt. The Jews no doubt were treated with contempt among the Gentiles, and to hear that one of their own nation had helped this on would rouse them as much as anything could.

and the law, and this place How great a change has come over the Apostle since the day when he joined with those who charged Stephen (ch. Acts 6:13), with speaking blasphemous words against this holy place (the Temple) and the law. Now a like multitude brings similar charges against him.

and further brought(Rev. Ver."and moreover he brought") Greeks also into the temple There was in the Temple a "court of the Gentiles" but the accusation against the Apostle was, that during his own sojourn in the sacred precincts he had brought his companions into places which were forbidden to them. How unscrupulous their charge was is indicated by the plural "Greeks," whereas the only person to whom such a term could be applied was Trophimus.

and hath polluted(Rev. Ver."defiled") this holy place They themselves as Jews were in the court allotted to their nation, and which was deemed more sacred than that of the Gentiles. The Greek word is literally "made common," and carries the thought back to St Peter's vision, where the Gentiles were figured by the beasts which the Apostle deemed "commonor unclean" (Acts 10:14).