Matthew 18:23-24 "Therefore the kingdom of heaven may be compared to a king who wished to settle accounts with his servants. When he began the reckoning, one was brought to him who owed him ten thousand talents;
Sometimes its good to review. We know the wages of sin is death. We know that we sin much daily. We know that we were bought from sin, death and the devil, not with silver or gold, but with the holy precious blood and the innocent suffering and death of Jesus Christ. Jesus paid our debt in full. So how much do we owe God? If the wages for one sin is death, and we sin much daily, it is clear that we owe more than we could pay in 100 lifetimes. And yet, because salvation is a gift of God in Christ, we owe nothing at all. Jesus didn't just buy our mortgage, he paid our debt in full.
In our parable Jesus tells the story of a man who owed a debt so large, that he could not pay that debt in 100 lifetimes - as he could not pay, he was ordered to be sold, along with his wife and children, and all that he had. This debtor fell on his knees and pleaded for time, he implored his master, just give me more time and I will pay every last cent. The master knew that the man could never repay the debt in 100 lifetimes, and had pity on the man, showed mercy, and forgave him the debt. Such a gift should change a man, change his life, change his outlook, change his values - in short, it should make him a new man.
And that's the problem, because he didn't change - on leaving his master, he found another man who owed him a small sum. This other man also pleaded for time, but he was shown no sympathy, no mercy, no understanding, no grace. Those who saw these things could not understand this unforgiving spirit, and the report soon reached the master, who summoned the wicked man, because he did not show mercy, he was thrown in prison until his debt was paid in full, and that would take an eternity.
The gift of salvation in Jesus Christ has fully paid the debt we owe for our sins, and the gates of heaven haven been opened for us, and we have peace with God. Nothing is lacking, even the faith needed to receive the gift is given, also the power that changes us and makes us a new creation - that too is given. The problem is that there are some people who would receive the gift of forgiveness, and sill wish to hold on to their old sinful nature. They reject the faith, and they reject the new life; and in so doing they reject the gift of forgiveness.
If you would be a child of God, know that you will be doing the works of God, and if the chief thing God has done for you, is to have mercy on you - then the life of a child of God will be one that shows mercy to others, as God has shown mercy to us.