Matthew 18:32-35

Then the master called the man back in and told him, ‘You evil servant! I forgave you all your debt because you begged me to. Shouldn't you have been merciful to your fellow-servant as well, just as I was merciful to you?’ His master became angry and handed him over to the jailors until he had repaid all the debt. This is what my heavenly Father will do to every one of you unless you sincerely forgive your brothers.”