“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.”
King James Version (KJV)
2:13 Where the throne of Satan is - Pergamos was above measure given to idolatry: so Satan had his throne and full residence there. Thou holdest fast my name - Openly and resolutely confessing me before men. Even in the days wherein Antipas - Martyred under Domitian. Was my faithful witness - Happy is he to whom Jesus, the faithful and true witness, giveth such a testimony!
Re 2:13 Where Satan's seat [is]. In a center of heathen idolatry. Pergamos was a notorious center of idolatry. Thou holdest fast my name. Honor and trust in the name of Christ. Hast not denied my faith. Still continue firm in the profession of Christ though persecuted. Antipas [was] my faithful martyr. Some fanciful saint who had suffered martyrdom among them because he was a faithful witness of Christ.