The forgetting of wrongs is a sign of true repentance

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 9 ~ On Remembrance of Wrongs

¶17. The forgetting of wrongs is a sign of true repentance. But he who dwells on them and thinks that he is repenting is like a man who thinks he is running while he is really asleep.

If you forgive quickly, then you will be generously forgiven

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 9 ~ On Remembrance of Wrongs

¶16. Some, for the sake of forgiveness, give themselves up to labours and struggles, but a man who is forgetful of wrongs excels them. If you forgive quickly, then you will be generously forgiven.

Have remembrance of wrongs and spitefulness against the demons

Venerable John Climacus ~ The Ladder of Divine Ascent
Step 9 ~ On Remembrance of Wrongs

¶9. Have remembrance of wrongs and spitefulness against the demons, and be at constant enmity with your body. The flesh is an ungrateful and treacherous friend. The more you care for it, the more it injures you.