To wipe away sins does not entail much labor

Considering all these things then, and counting the recompense which is given in this case and remembering that to wipe away sins does not entail much labor and zeal, let us pardon those who have wronged us. For that which others scarcely accomplish, I mean the blotting out of their own sins by means of fasting and lamentations, and prayers, and sackcloth, and ashes, this it is possible for us easily to effect without sackcloth and ashes and fasting if only we blot out anger from our heart, and with sincerity forgive those who have wronged us.

St. John Chrysostom