1 Peter 5:13

“The church that is at Babylon, etc.] The Vulgate Latin, Syriac, and Arabic versions, supply the word “church”, as we do. Some, by “Babylon”, understand Rome, which is so called, in a figurative sense, in the book of the Revelations: this is an ancient opinion; so Papias understood it, as f105 Eusebius relates; but that Peter was at Rome, when he wrote this epistle, cannot be proved, nor any reason be given why the proper name of the place should be concealed, and a figurative one expressed. It is best therefore to understand it literally, of Babylon in Assyria, the metropolis of the dispersion of the Jews, and the centre of it, to whom the apostle wrote; and where, as the minister of the…”

“The . . . at Babylon--ALFORD, BENGEL, and others translate, "She that is elected together with you in Babylon," namely, Peter's wife, whom he led about with him in his missionary journeys. Compare Pe1 3:7, "heirs together of the grace of life." But why she should be called "elected together with you in Babylon," as if there had been no Christian woman in Babylon besides, is inexplicable on this view. In English Version the sense is clear: "That portion of the whole dispersion (Pe1 1:1, Greek), or Church of Christianized Jews, with Gentile converts, which resides in Babylon." As Peter and John were closely associated, Peter addresses the Church in John's peculiar province, Asia, and closes…”

“The church that is at Babylon, elected together with you - It will be seen at once that much of this is supplied by our translators; the words “church that is” not being in the original. The Greek is, ἡ ἐν Βαβυλῶνι συνεκλεκτὴ hē en Babulōni suneklektē; and might refer to a church, or to a female. Wall, Mill, and some others, suppose that the reference is to a Christian woman, perhaps the wife of Peter himself. Compare 2 John 1:1. But the Arabic, Syriac, and Vulgate, as well as the English versions, supply the word “church.” This interpretation seems to be confirmed by the word rendered “elected together with” - συνεκλεκτὴ suneklektē. This word would be properly used in reference to…”

“The church that is at Babylon - Near which St. Peter probably was, when he wrote this epistle. Elected together with you - Partaking of the same faith with you. Mark - It seems the evangelist. My son - Probably converted by St. Peter. And he had occasionally served him, "as a son in the gospel." Next: 2 Peter Chapter 1”

“5:13 Babylon was probably symbolic for Rome. Like Rome, Babylon was a great city, the capital of an empire. Babylon held sway over much of the ancient Near East in the 500s BC. As a great city and the capital of the empire that burned Jerusalem and took many captive Israelites back to the city, Babylon was regarded as the power center of a world hostile to God’s people. For this reason, the book of Revelation uses “Babylon” as a metaphor or code word for Rome. Peter probably also used the title in the same way. • Mark, also called John Mark, was another co-worker of the apostle Paul. Mark wrote the Gospel of Mark, which is generally thought to be based on Peter’s teachings.”

“at: Psa 87:4; Rev 17:5, Rev 18:2 elected: Jo2 1:13 Marcus: Act 12:12, Act 12:25 1 Peter 5:14”