Firmly purpose in your soul to hate every sin of thought, word, and deed, and when you are tempted to sin . . .
“Firmly purpose in your soul to hate every sin of thought, word, and deed, and when you are tempted to sin resist it valiantly and with a feeling of hatred for it; only beware lest your hatred should turn against the person of your brother who gave occasion for the sin. Hate the sin with all your heart, but pity your brother; instruct him, and pray for him to the Almighty, Who sees all of us and tries our hearts and innermost parts. ‘Ye have not yet resisted unto blood, striving against sin.’ (Hebrews 12:4) It is impossible not to often fall into sin unless you have a hatred of it implanted in your heart. Self-love must be eradicated. Every sin comes from the love of self. Sin always appears, or feigns to be, to wish us well, promising us plenteousness and ease. ‘The tree was good for food, and it was pleasant to the eyes, and a tree to be desired to make one wise.’ (Genesis 3:6) This is how sin always appears to us.”
+ St. John of Kronstadt, My Life in Christ