Mattityahu (Mat) 18:32-35

Then the master summoned his servant and said, ‘You wicked servant! I forgave you all that debt just because you begged me to do it. Shouldn’t you have had pity on your fellow servant, just as I had pity on you?’ And in anger his master turned him over to the jailers for punishment until he paid back everything he owed. This is how my heavenly Father will treat you, unless you each forgive your brother from your hearts.”