At the end of the first century the peninsula known as Asia Minor seems to have embraced six provinces, Asia, Bithynia (including Pontus), Galatia, Cappadocia, Cilicia, Lycia (including Pamphylia). The Province of Asia had been created as far back as the year B.C. 120 out of the domains bequeathed to the Senate by Attalus III., the last king of Pergamum. . . . Asia in the New Testament, wrote Dr. Lightfoot in 1865, is always Proconsular Asia.; and his dictum has not been seriously shaken by the researches of the last forty years.1We would locate the churches today on a map of western Turkey.
The prominence of this church is reflected in its being the possible recipient of as many as eight NT books: the gospel of John, Ephesians, 1 and 2 Timothy, 1, 2, and 3 John, and Revelation. Besides, Paul was ministering in Ephesus at the time he wrote 1 Corinthians.3One of the principles of Scripture is that those who have received the greater revelation have greater responsibility for correctly responding to what they have been shown. Peter mentions this principle: For the time has come for judgment to begin at the house of God; and if it begins with us first, what will be the end of those who do not obey the gospel of God? (1Pe. 1Pe. 4:17). This may explain why the letters to the churches which appear in Rev. Rev. 2:1+ and Rev. 3:1+ precede the portion of the book which describes Gods correction of the non-believing (Rev. Rev. 6:1+ and beyond).