...let us hold fast to love of Him, hating and rightly turning away from the devil. For as our Benefactor is loved and cherished in proportion to His benefactions, so the wicked one should be hated and rejected for his ways in equal proportion. For he is the destroyer of our life. In the words of the Master, he is a murderer from the beginning [John 8:44]. He is the one who has divided our race into ten thousand opinions, wounding it with many darts of sin and seeking to swallow down the inhabited world. If we do not hate him, there will be no escaping the punishment that will be meted out to us, because we joined to our foe and murderer. But, my brothers, let us fly from him! Let us fly most certainly. What is flight? The avoidance of wicked actions and thoughts, and also affinity with God, the assumption of good works.

St. Theodore the Studite