I recently watched two movies showing the necessity of forgiveness: I Can Only Imagine and The Railway Man. Both movies showed the necessity, beauty and power of forgiveness. I cried at the crucial point in each movie when forgiveness was finally offered and received after years of living with suppressed anger, bitterness and resentment. Forgiveness in necessary whether or not you believe in God who loves and forgives. Forgiveness is necessary for the person who needs to be forgiven and the person who needs to forgive. Both souls are healed by forgiveness. The healing is spiritual, mental, emotional, relational, and probably also physical.
Christ taught us to pray, “Forgive our sins as we forgive those who sin against us.”