The seven churches to which John sends salutation, were those of Ephesus, Smyrna, Pergamos, Thyatira, Sardis, Philadelphia, and Laodicea, 1:11. The Asia, in which they were situated, was a province in Asia Minor, distinct from Pontus, Gallatia, and Bithynia; which also were in Asia Minor, 1 Pet. 1:1, and Acts 2:9. Of the province of Asia, Ephesus was the capital, and was the principal place of John’s residence. The seven cities which contained those churches, were situated in a kind of amphitheatre, surrounded by mountains. Smyrna was 46 miles north of Ephesus, and Pergamos 64 miles; Thyatira was 48 miles to the east, and Sardis 33 miles; Philadelphia 27 miles to the south, and Laodicea 42 miles. These churches had all been under the general supervision of John’s ministry; and for this reason, doubtless, they are especially designated, instead of those with which he had not been so intimately connected. John writes to the seven churches, in obedience to the command,—“What thou seest, write in a book, and send it unto the seven churches which are in Asia,” 1:11. He seems to have written what he saw, at the time of its exhibition, and not at the close of the entire presentation; for when he was about to write the discordant utterances of “the seven thunders,” he was told to “write them not,” 10:4. John observes the oriental custom of placing his name at the commencement, instead of the close of his communication. Few persons now deny that this was John the Evangelist. Irenæus, who was born only about 30 years after the death of John, speaks of the writer of the Apocalypse, as “the disciple of Christ,—that same John that leaned on his breast at the last supper.” Most beautiful reference is here made to the attributes of DEITY: “Him who is, and who was, and who is to be,” can be no other than the great Preëxistent, who said to Moses, “I AM THAT I AM,” Ex. 13:14.