(For they had seen before with him in the city Trophimus an Ephesian, whom they supposed that Paul had brought into the temple.)

(For they had seen Trophimus the Ephesian in the city with him, whom they supposed that Paul had brought into the temple.)

for they had seen before Trophimus, the Ephesian, in the city with him, whom they were supposing that Paul brought into the temple.

For they had seen him before in the town with Trophimus of Ephesus, and had the idea that Paul had taken him with him into the Temple.

(For they had seen Trophimus, an Ephesian, in the city with him, and they supposed that Paul had brought him into the temple.)

(For they had previously seen Trophimus the Ephesian in Paul's company in the city, and were under the belief that Paul had taken him into the Temple.)

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.

For 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.

Trophimus--(See on Acts 20:4).