Acts 28:14

Where we found brethren; Christians, as some think, for so they mutually called one another. But it is not so probable that any should profess Christianity so near unto Rome, and that it should be no more known or believed in Rome. Others therefore think that the apostle means Jews, whom he calls brethren (being, as himself, descended from Abraham); for so he calls the Jews he found at Rome, Acts 28:17; who yet called the Christians a sect, adding, that it was every where spoken against, Acts 28:22. Rome is known to be the chief city in Italy, and to have been the empress of the world, and famous for the church to whom St. Paul wrote his Epistle, known by its inscription unto them.