Revelation 2:9, 13, 19

‘I know your tribulation and your poverty (but you are rich), and the blasphemy by those who say they are Jews and are not, but are a synagogue of Satan.

‘I know where you dwell, where Satan’s throne is; and you hold fast My name, and did not deny My faith even in the days of Antipas, My witness, My faithful one, who was killed among you, where Satan dwells.

‘I know your deeds, and your love and faith and service and perseverance, and that your deeds of late are greater than at first.