| Barnes' Notes on the Bible In the city - In Jerusalem. As he was with Paul, it was inferred that he would attend him everywhere. Trophimus - He had accompanied Paul on his way from Ephesus, Acts 20:4. Whom they supposed ... - This is a most striking illustration of the manner in which accusations are often brought against others. They had seen him with Paul in the city; they inferred, therefore, that he had been with him in the temple. They did not even pretend that they had seen him in the temple; but the inference was enough to inflame the angry and excitable passions of the multitude. So in the accusations which people now often make of others. They see one thing, they infer another; they could testify to one thing, but they conclude that another thing will also be true, and that other thing they charge on them as the truth. If people would state facts as they are, no small part of the slanderous accusations against others would cease. An end would be made of the most of the charges of falsehood, error, heresy, dishonesty, double-dealing, and immorality. If a statement is made, it should be of the thing as it was. If we attempt to say what a man has done, it should not be what we suppose he has done. If we attempt to state what he believes, it should not be what we suppose he believes.
Gill's Exposition of the Entire BibleFor they had seen before with him in the city,.... Not of Ephesus, but of Jerusalem: Trophimus an Ephesian; the same that is mentioned in Acts 20:4 whom these Jews of Asia, and who very probably were inhabitants of Ephesus, knew very well to be a Gentile: whom they supposed Paul had brought into the temple; for seeing him walk with the apostle very familiarly through the streets of Jerusalem, they concluded from thence, that he took him with him into the temple, which was a very rash and ill grounded conclusion; and which shows the malignity and virulence of their minds, and how ready they were to make use of any opportunity, and take up any occasion against him, even a bare surmise, and which had no show of probability in it; for it can never be thought, that while Paul was using methods to remove the prejudices of the Jews against him, he should take such a step as this, to introduce a Gentile into the holy place, which he knew was unlawful, and would greatly irritate and provoke them.
Vincent's Word StudiesTrophimus See on Acts 20:4. As an Ephesian he would be known to the Asiatic Jews.
Geneva Study Bible(For they had seen before with him in the city Trophimus an Ephesian, whom they supposed that Paul had brought into the temple.)
Jamieson-Fausset-Brown Bible Commentary29. Trophimus-(See on [2086]Ac 20:4).
Matthew Henry's Concise Commentary21:27-40 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. | 
