Revelation 2:9-13

9‘I know your suffering and your poverty (but you are rich), and how you are blasphemed and slandered by those who say they are Jews and are not, but are a synagogue of Satan [they are Jews only by blood, and do not believe and truly honor the God whom they claim to worship].

10Fear nothing that you are about to suffer. Be aware that the devil is about to throw some of you into prison, that you may be tested [in your faith], and for ten days you will have tribulation. Be faithful to the point of death [if you must die for your faith], and I will give you the crown [consisting] of life.

11He who has an ear, let him hear and heed what the Spirit says to the churches. He who overcomes [the world through believing that Jesus is the Son of God] will not be hurt by the second death (the lake of fire).’

12“And to the angel (divine messenger) of the church in Pergamum write: These are the words of Him who has and wields the sharp two-edged sword [in judgment]:

13‘I know where you dwell, [a place] where Satan sits enthroned. Yet you are holding fast to My name, and you did not deny My faith even in the days of Antipas, My witness, My faithful one, who was killed (martyred) among you, where Satan dwells.