Matthew 18:32-35

Then his master called him and said to him, ‘You wicked and contemptible slave, I forgave all that [great] debt of yours because you begged me. Should you not have had mercy on your fellow slave [who owed you little by comparison], as I had mercy on you?’ And in wrath his master turned him over to the torturers (jailers) until he paid all that he owed. My heavenly Father will also do the same to [every one of] you, if each of you does not forgive his brother from your heart.”