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
Bede
AD 735
I John: He indicates the person, the place, and the reason of the vision; and he also testifies that he saw this in the spirit, lest he should be supposed to have been deluded by fleshly apparition.