From Dr. John's Bible Studies:
The scriptures say that one man owed his lord a huge debt that he could not pay, and ask that the debt be forgiven. His lord forgave him. Soon the man demanded that a small amount of money that he had loaned to a friend be repaid, and when the friend could not pay the loan on time, he was punished. His lord heard about the injustice, and brought charges against him. The moral is that we should do unto others as we would that they do to us—and that we must practice what we preach before we preach.
If you are dealing with a problem where some other person has hurt you be sure that you pray to God that you will approach it in a Christian manner and never ask more than you would be willing to give. Look at your face in a mirror and make very sure you do not see a “better than thou attitude”.
Especially in my later years, I worry that I will slip along life’s way and ask you to do for Christ something that I am failing to do. I pray that God will not permit me to make this mistake.
From Paul, 2 Corinthians 5:
...from now on we regard no one from a worldly point of view. Though we once regarded Christ in this way, we do so no longer. 17 Therefore, if anyone is in Christ, the new creation has come: The old has gone, the new is here! 18 All this is from God, who reconciled us to himself through Christ and gave us the ministry of reconciliation: 19 that God was reconciling the world to himself in Christ, not counting people’s sins against them. And he has committed to us the message of reconciliation. 20 We are therefore Christ’s ambassadors, as though God were making his appeal through us. We implore you on Christ’s behalf: Be reconciled to God. 21 God made him who had no sin to be sin for us, so that in him we might become the righteousness of God.
And from Forgiveness in the Big Book:
We shall want to hold ourselves to the course of admitting the things we have done, meanwhile forgiving the wrongs done us, real or fancied. We should avoid extreme judgments, both of ourselves and of others involved. We must not exaggerate our defects or theirs. A quiet, objective view will be our steadfast aim. In all these situations we need self-restraint, honest analysis of what is involved, a willingness to admit when the fault is ours, and an equal willingness to forgive when the fault is elsewhere....that where there is wrong, I may bring the spirit of forgiveness ... It is by forgiving that one is forgiven.