I, John, your brother and partner in the tribulation and kingdom and perseverance that are in Jesus, was on the island of Patmos because of the word of God and my testimony about Jesus.
We have now come to that glorious vision which the apostle had of the Lord Jesus Christ, when he came to deliver this revelation to him, where observe, I. The account given of the person who was favoured with this vision. He describes himself, 1. By his present state and condition. He was the brother and companion of these churches in tribulation, and in the kingdom and patience of Christ.
Commenting on Revelation 1:9-20
I, John, who also am your brother,.... Here begins the narrative of the visions and prophecies of this book, the former verses containing a general preface to the whole; and this, and the two following verses, are the introduction to the first vision, which John saw; who describes himself by his name, "I John", the evangelist and apostle, a servant of Christ, and a beloved...
Verse 9. I John, who also am your brother. Your Christian brother; who am a fellow-Christian with you. The reference here is doubtless to the members of the seven churches in Asia, to whom the epistles in the following chapters were addressed, and to whom the whole book seems to have been sent.