I John, who also am your brother, and companion in tribulation, and in the kingdom and patience of Jesus Christ, was in the isle that is called Patmos, for the word of God, and for the testimony of Jesus Christ.
All Commentaries on Revelation 1:9 Go To Revelation 1
Oecumenius
AD 990
He was writing to the faithful who had suffered many things for the Gospel and the preaching of Christ at the hands of those who persecuted the pious. He calls himself as being “in Jesus” as sharing in their oppression and perseverance, and in the kingdom of God, because of the way they reside in oppression in behalf of the Word.