The devil, with all his powers, 'walks about like a roaring lion, seeking whom he may devour' (I Pt. 5:8). So you must never relax your attentiveness of heart, your watchfulness, your power of rebuttal or your prayer to Jesus Christ our God. You will not find a greater help than Jesus in all your life, for He alone, as God, knows the deceitful ways of the demons, their subtlety and their guile.
St. Hesychios the Priest