Our nature dictates that we ought to hold a grudge against anyone who would slight us. Should we find ourselves angry with someone, our nature would want us to take it further. It is within us not to want to forgive.
But God showed us what forgiveness really is. In everything we do, no matter how awful, no matter how horrible, no matter how ugly it is, God will forgive us, if we wholeheartedly repent of our sins. It is within His nature to want to forgive.
No greater sacrifice had anyone made than that made by Jesus when He gave His life on the cross for us sinners:
“By this we know love, that he laid down his life for us, and we ought to lay down our lives for the brothers.” (1 John 3:16)
How much more would His sacrifice mean to us if we had seen with our own eyes Jesus bound, whipped, tortured and nailed to the cross, if we knew that cross was meant for us?
In the same way, we have to let go of grudges, slights and anger. Instead, we have to love those who cause us hurt. Bless those who want us harm. Forgive those who wish to do us evil. And even if others did not mean to offend us in any way, but in our old nature, we might want to do them evil, we must allow the Holy Spirit to lead us to change. Our nature will then be as God’s nature; and through this, we will have the power to forgive as God forgives.