When The Door Slams
For if you forgive other people when they sin against you, your heavenly Father will also forgive you. But if you do not forgive others their sins, your Father will not forgive your sins. (Matthew 6:14-15 NIV)
You can clear your mind and heart of the negativity you have built up over time with one decisive action: Issue a blanket pardon to everyone for everything that they have done to hurt you in any way. The doorway that opens to a life of love and joy forgiveness. Your ability to freely forgive other people, and to let the hurt go, is the true mark of integrity, character and a fully developed personality.
Many people cling to their resentments because they feel that they have paid so dearly for them that they cannot possibly give them up. Sometimes people's entire lives are built around their past hurts and suffering. They have little else to talk about, and they dwell on their negative experiences continually.
Eventually, these people make themselves physically and mentally ill. Their repressed anger and negativity sooner or later erupt and spoil any new relationships that they try to build. They sabotage their own futures. And, in every case, there is only one solution and that is to let go and give it to LORD Jesus our Savior. Forgiving another person is a perfectly "selfish" act. You do it so that you can be free. You give it to the LORD, so that you can experience the happiness and joy for which you were created.
Think about this: We are talking about truly born again Christians. If you find that you still cannot bring yourself to do a kindness for the other Christian, this should tell you something about your true feelings. This inability to forgive might be holding you back from loving yourself and other Christians. You might have your foot on the brakes of your own future happiness.
Affirmation: But what does it say? "The word is near you, even in your mouth and in your heart" (that is, the word of faith which we preach); that if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved. For with the heart one believes to righteousness, and with the mouth confession is made to salvation. For the scripture says, "Whoever believes on Him will not be put to shame." ((Romans 10:8-11 NKJV)
Ask the Holy Spirit to search your heart and reveal any areas of unconfessed sin. Acknowledge these to the LORD and thank Him for His forgiveness