I, John, am your brother and your partner in suffering and in God’s Kingdom and in the patient endurance to which Jesus calls us. Revelation 1:9 NLT

John walked with Jesus, and was called the disciple who Jesus loved. John was one of three disciples privileged to be on the mount of transfiguration. He also was one of two disciples who asked to be seated next to Jesus in His kingdom. Now, here in this text, John does not set himself apart from us as though he was in some special class. He writes to you and me calling himself our brother and partner.

You may study Revelation here.