Matthew 18:29-30, 33-35

So his fellow-servant fell down and besought him, saying, Have patience with me, and I will pay thee. And he would not: but went and cast him into prison, till he should pay that which was due.

shouldest not thou also have had mercy on thy fellow-servant, even as I had mercy on thee? And his lord was wroth, and delivered him to the tormentors, till he should pay all that was due. So shall also my heavenly Father do unto you, if ye forgive not every one his brother from your hearts.