Rebut evil thoughts immediately!

simpsonsWhen you perceive an evil thought, rebut it and immediately call upon Christ to defend you; and while you are still speaking, Jesus in His gentle love will say: “Behold, I am by your side ready to help you.” When the whole detachment of the enemy has been put out of action through prayer, again turn your attention to your intellect. There you will see a succession of waves worse than before, with the soul swimming among them. But again, awakened by His disciple, Jesus as God will rebuke the winds of evil (cf. Mt. 8:23-27). Having found respite for an hour perhaps, or for a moment, glorify Him who has saved you, and meditate on death.”

St. Philotheos of Sinai