Forgiveness necessary to obtain Grace, the power of God. Unforgiveness keep us locked in the past. If we do not forgive, we continually live out past conflicts in the present. It is like developing different programs on your computer. After the program is in place, all we have to do is press one key and the whole program appears and directs our following actions. Likewise, we have past offenses locked in our heads. The full event and circumstances are recorded. Therefore, we only need one word or press one button to bring the whole event into vivid memory. This program will therefore control all our actions. Without forgiveness we are stuck in the past and unable to operate in the Grace (power) of God.