From the time of the early Church, the practice of seven fixed prayer times have been taught; in "Apostolic Tradition", Hippolytus instructed Christians to pray seven times a day "on rising, at the lighting of the evening lamp, at bedtime, at midnight" and "the third, sixth and ninth hours of the day, being hours associated with Christ's Passion." With respect to praying in the early morning, Hippolytus wrote: "Likewise, at the hour of the cock-crow, rise and pray. Because at this hour, with the cock-crow, the children of Israel refused Christ, who we know through faith, hoping daily in the hope of eternal light in the resurrection of the dead."