Reply to Faustus the Manichaean

²¹ Will it be said that the law in these early times was incomplete as regards not committing adultery, till it was completed by the Lord, who added that no one should look on a woman to lust after her? This is what you imply in the way you quote the words, "You have heard that it has been said, You shall not commit adultery: but I say unto you, Do not lust even." "Here," you say, "is the fulfillment." But let us take the words as they stand in the Gospel, without any of your modifications, and see what character you give to those righteous men of antiquity. The words are: "You have heard that it has been said, you shall not commit adultery; but I say unto you, that whosoever looks on a woman to lust after her, has committed adultery with her already in his heart." In your opinion, then, Enoch and Seth, and the rest, committed adultery in their hearts; and either their heart was not the temple of God, or they committed adultery in the temple of God. But if you dare not say this, how can you say that Christ, when He came, fulfilled the law, which was already in the time of those men complete?