I say not unto thee. Jesus gives the full weight of his authority to his precept, in distinction from Peter's suggestion and rabbinical glosses. Seventy times seven. No specific number, but practically unlimited.
There is no measure to forgiveness; it must be practised whenever occasion arises. Some translate, "seventy-seven times," making an allusion to the retribution exacted from Lamech: "If Cain shall be avenged sevenfold, truly Lamech seventy and sevenfold" (Genesis 4:24).
Christian forgiveness must be extended as far as old-world vengeance. Mercy rejoices against judgment. But the genius of the language supports the rendering of the Authorized Version. St. Paul has caught the spirit of his Master when he writes, "Forgiving one another, even as God for Christ's sake hath forgiven you" (Ephesians 4:32).
In the Mosaic dispensation there was some foreshadowing of the doctrine of forgiveness in the enactments which enjoined tender treatment of debtors, and in the terms of the jubilee law; but there were no rules concerning the pardon of personal injuries; the tendency of many prominent injunctions was to encourage retaliation.
Herein is seen an important distinction between the Law and the gospel, the institutions antecedent to the death and atonement of Christ, and those subsequent thereto.