Father of Mercies, who to thine Apostle Saint Peter didst reveal in threefold vision thy boundless compassion: Forgive we pray thee our unbelief, and so enlarge our hearts and enkindle our zeal, that we may fervently desire the salvation of all men, and with more ready diligence labour in the extension of thy kingdom; for his sake who gave himself for the life of the world, thy Son our Saviour Jesus Christ.