Excellent post and very crucial in our lives. If we don't forgive others, God won't forgive us. I would include that story told about the master who had a servant who forgave him his debts. But then that servant didn't forgive debts owed to him. I forgot that scripture.?
When I was younger, I held grudges. Even after I became a Christian, I struggled with the concept of forgiveness. I agreed with it only on the basis that someone had to ask for it. I thought if God doesn't forgive us until we ask, so why should I? I learned that it wasn't necessary for others to ask. We needed to do it, not so much that it released them (because they might not care anyways), but it was for us to be healed. Wow, it works, that negative energy that you hold in vanishes. Then you actually sweep hot coals over their heads, its on them, not you anymore. Forgiveness is for our spiritual health - I like that, its much easier now. Hey, some people remain jerks all their lives, we can't let them get the best of us. We learn to turn the cheek easier when an insult comes.