Bear with each other and forgive one another if any of you has a grievance against someone. Forgive as the Lord forgave you. Colossians 3:13
Forgiveness is an act that in most cases is never known by the person being forgiven. By forgiving, we break the chains of anger, sadness and bitterness that keep us held to the past, and unable to move forward. A counselor once described unforgiveness as going through life feeling like you are juggling balls or carrying a heavy ball and chain all the time! How very exhausting and distracting that is! When we refuse to forgive, we put a roadblock in our own way to true repentance as God tells us more than once in scripture that we must forgive in order to be forgiven.
For if you forgive other people when they sin against you, your heavenly Father will also forgive you. 15 But if you do not forgive others their sins, your Father will not forgive your sins. Matthew 6:14-15