17. So that his person does not seem to us of small account, who by his word moistened the dry earth with the dew of heaven, and unlocked the closed heavens certainly not by human power. For who is he who can open the heavens except Christ, for Whom daily out of sinners’ food is gathered, an increase for the Church? For it is not in the power of man to say: “The barrel of meal shall not waste, and the cruse of oil shall not fail, until the day on which the Lord shall send rain on the earth.” For though it be the rule of the prophets to speak thus, the voice is in truth that of the Lord. And so it is stated first: “For thus saith the Lord.” For it is of the Lord to vouch for a continuance of heavenly sacraments, and to promise that the grace of spiritual joy shall not fail, to grant the defences of life, the seals of faith, the gifts of virtues.