2- Forgiveness

Pardon really worthy of the name is …completely giving up the desire for punishment. By leaving the questionable territory of desired pain for pain, damage for damage, atonement for guilt, one enters the open country of freedom. Forgiveness reestablishes order by acquitting the offender and thereby placing him in a new and higher order of justice… Only forgiveness frees us from the injustice of others…We are told, simply, to forgive men as our Father in heaven forgives us. Monsignor Romano Guardini.

Forgiveness is not natural to mankind. We are more inclined to revenge or justice. Jesus is the one who taught us to forgive. He taught us the Our Father, forgive us our trespasses as we forgive those who trespass against us , and If you forgive others their transgressions, your heavenly Father will forgive you. But if you do not forgive others, neither will your Father forgive your transgressions.
No other religion has such a notion of the importance of forgiveness.

Rabbi Kelman personally discovered much in the way of peace-building methodology from Christianity. He is "conscious how Christians have taken the idea of forgiveness into a whole myriad of places that Judaism never imagined.
One of the problems in the Middle East is the inability of Palestinians and Israelis to forgive each other with each side blaming the other side," the rabbi said. "And I think that until we can conceive of the power of this forgiveness Christianity promotes at a human level, even surrounding the most horrible things … well, it'll be hard to imagine a peaceful political resolution."