The petition briefly and the parable at length state with perfect clarity the correlation between God's forgiveness of the debt we owe Him (a debt which can only be satisfied by the blood of God's own Son) and the offenses we have suffered from others. As God has shown mercy and forgiveness to us, Christians likewise are bound to show similar mercy and forgiveness. Christians may never seek revenge on those who have wronged us, may never practice spite, and may never hold grudges. Such behavior is truly natural for us because our nature is sinful. But the Christian is a man or woman who is controlled not by nature but by super-nature. We live not according to our old fallen state but by grace and the new nature God has given us.
But sad to say, we commonly distort this noble, beautiful, and painful vision of Christian behavior. We must take great heed to our spiritual condition whenever we say, “You should be more forgiving,” or “He should not feel that way.” The requirement of forgiveness is no rule for us to apply to others! If Bill injures John's home, family, or fortune, it is not for Steve to tell John, “You ought not hold that grudge.” When we fall into that moral trap, we are probably failing to practice forgiveness ourselves. As the Gospel has been secularized and diluted, the principle of forgiveness has become warped and judgmental. We all know many Steves who will sit in judgment on John without knowing the full story of what Bill has done.
also must never become the mask for moral indifference. Our Lord does not ask us (on the contrary, He forbids us!) to engage in sloppy moral judgments. We are never to stand idly by when others are being harmed or when evil itself goes on a rampage. When the Nazis were slaughtering the Jews and numerous others with them, there were many sentimental folk, who considered themselves to be excellent Christians, who urged a “forgiving” attitude toward the Nazis. Who would presume to “forgive” an abortionist?