Matthew 18:30-34

30But he refused. Instead, he went out and threw him in prison until he repaid the debt.

31When his fellow slaves saw what had happened, they were very upset and went and told their lord everything that had taken place.

32Then his lord called the first slave and said to him, ‘Evil slave! I forgave you all that debt because you begged me!

33Should you not have shown mercy to your fellow slave, just as I showed it to you?’

34And in anger his lord turned him over to the prison guards to torture him until he repaid all he owed.