Get away from me, Satan! I will worship the Lord my God and serve Him alone (see Matt. 4:10; Luke 4:8). Your blasphemy will return to your head, and the Lord will attribute it to you. Get away from me. May God, who created me in His image and likeness, abolish you.
If even after this he annoys you, shamelessly, transfer your thought to some other subject, Divine or human (if it is not beyond what is appropriate).