The Parable of the Unforgiving Servant
Then Peter came to Jesus and asked, 'Lord, how many times shall I forgive my brother or sister who sins against me? Up to seven times?' Jesus answered, 'I tell you, not seven times, but seventy-seven times.
Therefore, the kingdom of heaven is like a king who wanted to settle accounts with his servants. As he began the settlement, a man who owed him ten thousand bags of gold was brought to him. Since he was not able to pay, the master ordered that he and his wife and his children and all that he had be sold to repay the debt. At this the servant fell on his knees before him. "Be patient with me," he begged, "and I will pay back everything." The servant’s master took pity on him, canceled the debt and let him go.
But when that servant went out, he found one of his fellow servants who owed him a hundred silver coins. He grabbed him and began to choke him. "Pay back what you owe me!" he demanded. His fellow servant fell to his knees and begged him, "Be patient with me, and I will pay it back."...
Reference: Matthew 18:21-35
The Debt of Forgiveness
A man owed the bank a large sum of money. When he couldn’t pay, the bank gave him mercy and wiped out his debt. However, later, this same man refused to forgive a small debt that his neighbor owed him and demanded immediate repayment. When the bank found out, they withdrew their mercy. The parable reminds us that God forgives our immense debt of sin, and we, in turn, must forgive others as we have been forgiven. Jesus teaches that harboring unforgiveness blocks our relationship with God and others, and we must reflect God’s mercy.