Born in Carthage around 155 AD, Tertullian became a priest around the age of forty and worked tirelessly to defend the faith. In his "Scorpiace" of 208 AD, Tertullian wrote, "No delay or inquest will meet Christians on the threshold. …For though you think that heaven is still shut up, remember that the Lord left the keys of it to Peter here, and through him to the Church, which keys everyone will carry with him, if he has been questioned and made confession faith." "Scorpiace" is the first known historical reference to the keys pertaining to anyone other than Peter. In it, he saw the keys as pertaining to "everyone" if they "made confession", rather than according to the modern interpretation concerning the bishops of Rome alone. Tertullian later retracted even this association in De Pudecitia, listing various reasons why the Keys of Peter pertained to Peter alone. The churches later declared him an apostate along with the followers of Montanus for insisting that authority must be associated with demonstrable power.