Revelation 1:9

1:9 I, John, your brother and the one who shares with you in the persecution, kingdom, and endurance that are in Jesus, was on the island called Patmos because of the word of God and the testimony about Jesus.

Revelation 2:9

2:9 ‘I know the distress you are suffering and your poverty (but you are rich). I also know the slander against you by those who call themselves Jews and really are not, but are a synagogue of Satan.