For forgiveness of sins is most efficaciously prayed for with almsgiving and fasting, and supplications that are winged by such aids mount swiftly to God’s ears; since it is written, 'the merciful man doeth good to his own soul' (Prov. xi. 17), and nothing is so much a man’s own as that which he spends on his neighbor. For that part of his material possessions with which he ministers to the needy, is transformed into eternal riches, and such wealth is begotten of this bountifulness as can never be diminished or in any way destroyed, for 'blessed are the merciful, for God shall have mercy on them' (Matt. v.7), and He himself shall be their chief Reward, who is the Model of His own command.
Imagine, picture the multitude of your sins and imagine how tolerant of them is the Master of your life, while you are unwilling to forgive your neighbor even the smallest offense. Moan and bewail your foolishness, and that obstruction within you will vanish like smoke, you will think more clearly, your heart will grow calm, and through this you will learn goodness, as if not you yourself had heard the reproaches and indignities, but some other person entirely, or a shadow of yourself.
When we live according to the moral principles of our faith, those around us may respond in three possible ways. First, they may be so impressed by the example of our goodness, and so envious of the joy which it brings, that they want to join us and become like us. That is the response which we most earnestly desire. Second, they may be indifferent to us, because they are so bound up with their own selfish cares and concerns; although their eyes may perceive our way of life, their hearts are blind, so we are unable to stir them. Third, they may react against us, feeling threatened by our example and even angry with us; thus they will cling even more firmly to their material possessions and selfish ambitions, and slander us at every opportunity. Naturally, we dread this third type of reaction, because we want to live in peace with our neighbors, regardless of their personal beliefs and values. But if no one reacts to us in this way, we must wonder whether we are truly fulfilling the commandments of Christ.
Any soul which has lost its peace must repent, and the Lord will forgive its sins, and then peace and joy will visit the soul. There need be no witnesses, for the Holy Spirit is the witness of the remission of sins. Here is a sign of forgiveness: if you have come to hate sin, then the Lord has forgiven your sin.
As soon as you realize that you have sinned against the Lord, add no more wounds to your bruises. But if as a human you fall again, don't get despondent, don't despair. For how will the living Lord, Who told Peter to forgive seventy times seven in a day, not forgive us?