Origen

“ And Christians have nothing to fear, even if demons should not be well-disposed to them; for they are protected by the Supreme God, who is well pleased with their piety, and who sets His divine angels to watch over those who are worthy of such guardianship, so that they can suffer nothing from demons. He who by his piety possesses the favour of the Most High, who has accepted the guidance of Jesus, the “Angel of the great counsel,” [1] being well contented with the favour of God through Christ Jesus, may say with confidence that he has nothing to suffer from the whole host of demons. ”