27 The seven days were almost ended when some Jews from the province of Asia saw Paul in the Temple and roused a mob against him. They grabbed him, 28 yelling, "Men of Israel, help us! This is the man who preaches against our people everywhere and tells everybody to disobey the Jewish laws. He speaks against the Temple-and even defiles this holy place by bringing in Gentiles. " 29 (For earlier that day they had seen him in the city with Trophimus, a Gentile from Ephesus, and they assumed Paul had taken him into the Temple.) 30 The whole city was rocked by these accusations, and a great riot followed. Paul was grabbed and dragged out of the Temple, and immediately the gates were closed behind him. 31 As they were trying to kill him, word reached the commander of the Roman regiment that all Jerusalem was in an uproar.
Matthew Henry's Commentary on Acts 21:27-31
Commentary on Acts 21:27-40
(Read Acts 21:27-40)
In the temple, where Paul should have been protected as in a place of safety, he was violently set upon. They falsely charged him with ill doctrine and ill practice against the Mosaic ceremonies. It is no new thing for those who mean honestly and act regularly, to have things laid to their charge which they know not and never thought of. It is common for the wise and good to have that charged against them by malicious people, with which they thought to have obliged them. God often makes those a protection to his people, who have no affection to them, but only have compassion for sufferers, and regard to the public peace. And here see what false, mistaken notions of good people and good ministers, many run away with. But God seasonably interposes for the safety of his servants, from wicked and unreasonable men; and gives them opportunities to speak for themselves, to plead for the Redeemer, and to spread abroad his glorious gospel.