But before looking more closely at this, we ought to pay some attention to the constant motive which our Lord, even in His teaching, presents for the practice of a forgiving disposition. He always bases the duty of forgiveness on the need which we have of God's forgiveness; He teaches us to pray, "Forgive us our trespasses, as we forgive them that trespass against us;" and in the moving story of the unmerciful servant, who demanded the full payment from his fellow-servant just when his lord had pitifully remitted his own debt, He tells us that forgiveness of our enemies is an indispensable condition of our being forgiven by God. "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."[602] It is not therefore only, as it is sometimes stated, that we ought to be moved to pity by remembering what God has done for us. No, there is a much sterner thought in our Lord's mind; it is that if we do not forgive we shall not and cannot be forgiven. The forgiving spirit manifested to our fellow-men is that without which it is vain for us to come near and to ask God for pardon. If we have come, and are just about to offer our prayer, and if we then remember that we have aught against a brother, we must go first and be reconciled to him, before our prayer can be so much as heard. Here is certainly a motive of a very powerful kind. Which of us would dare to cherish the bitter thought, or proceed with our plan of vengeance, if we remembered and realized that our vindictiveness would make our own pardon at the hands of God impossible? Which of the countless deeds of retaliation that stain with blood the pages of history would have been perpetrated, and which of the perpetrators would not have tremblingly relinquished all thought of reprisals, if they had seen that in those savage acts of vengeance they were not, as they supposed, executing lawful justice, but actually cutting off their own hope of pardon before the throne of God? If we avenge ourselves, if society is constantly torn by the quarrels and the mutual recriminations of hostile men whose one thought is to give as good as they have got, it can only be because we do not believe, or do not realize, this solemn teaching of the Lord. He seems a faint and doubtful voice compared with the loud tumult of passion within; His authority seems weak and ineffectual compared with the mighty domination of the evil disposition. Powerful, therefore, as the motive is to which He constantly appeals, if He had left us nothing but His teaching on the subject we should not be materially better off than they who listened with attention to the teaching of the wise authors of these ancient Proverbs. What more has He left us?