Revelation 2:9-13

9I know thy tribulation and thy poverty; but thou art rich; and the railing of those who say that they themselves are Jews, and are not, but a synagogue of Satan.

10Fear nothing [of] what thou art about to suffer. Behold, the devil is about to cast of you into prison, that ye may be tried; and ye shall have tribulation ten days. Be thou faithful unto death, and I will give to thee the crown of life.

11He that has an ear, let him hear what the Spirit says to the assemblies. He that overcomes shall in no wise be injured of the second death.

12And to the angel of the assembly in Pergamos write: These things says he that has the sharp two-edged sword:

13I know where thou dwellest, where the throne of Satan [is]; and thou holdest fast my name, and hast not denied my faith, even in the days in which Antipas my faithful witness [was], who was slain among you, where Satan dwells.