Revelation 2:12-13

And to the angel of the church in Pergamos write; These things saith he which hath the sharp sword with two edges; I know thy works, and where thou dwellest, {even} where Satan's seat {is}: and thou holdest fast my name, and hast not denied my faith, even in those days wherein Antipas {was} my faithful martyr, who was slain among you, where Satan dwelleth.