John Calvin on Acts 21:30

30. And the city was moved. We see in this place the vanity of the common people, which count Paul a condemned man before ever they hear him. Whereas the city is moved about godliness, “Quod tumultuatur civitas in negotio pietatis,” that the city is in a tumult in a matter relating to godliness. “it is no marvel; but this is a point of perverse zeal and mad rashness, in that they set themselves against Paul before they know his matter. For in this corruption of nature frowardness is joined with foolishness, so that those will readily, of their own accord, make haste to maintain an evil cause who can hardly be moved with many exhortations to do well. This is a hard case, that the whole world should be armed against us at a sudden, through the persuasion of a few; but seeing it pleaseth the Lord it should be so, let every one of us prepare himself by this, and such like examples, to suffer all manner [of] assaults, and to bear and abide all brunts.

Acts 21:31-40

31. And as they sought to kill him, it was told the captain of the band, that all Jerusalem was in an uproar. 32. Who took with him straightway soldiers and under captains, and ran down unto them: but they, when they saw the chief captain and the soldiers, left smiting of Paul. 33. Then the chief captain drew near, and took him, and commanded him to be bound with two chains, and he asked what he was, and what he had done. 34. And some cried one thing, and some another, among the people: and when he could not know the truth, by reason of the tumult, he commanded him to be carried into the camp. 35. And when he came to the stairs, it happened that he was carried of [by] the soldiers, because of the violence of the multitude. 36. For the multitude of people followed, crying, Away with him. 37. And when Paul began to be carried into the camp, he saith to the captain, May I speak to thee? Who said, Canst thou speak Greek? 38. Art not thou that Egyptian, which before these days madest an uproar, and leddest into the wilderness four thousand men which were murderers? 39. And Paul said, I verily am a man which am a Jew, born in Tarsus, a citizen of no vile city of Cilicia: but I beseech thee suffer me to speak to the people. 40. And when he had given him leave, Paul, standing upon the stairs, beckoned with the hand unto the people. And when there was made great silence, he spake in the Hebrew tongue, saying.