When you believe, it means that you have confidence in that person to whom you make your prayer. Forgiving makes one's heart light, and acceptable to God, because we are all sinners a one point of time, daily we sin and often do not realise that we did. Remember we were saved by grace, we need to open up doors of salvation to others. When we forgive them, in turn they are accepted back in our lives, and we lift our prayers with a heart free of hate, and bulk.

Its important to know that the blood of Jesus is sufficient to wash everyone's sin, that no sin is bigger than the other.