Book XII. Having depicted a world destroyed and foreshadowed a world restored, the angel shows Adam how man will migrate to a plain, where by means of bricks and bitumen an attempt will be made to erect a tower to reach heaven. When Adam expresses displeasure that one of his race should defy God, Michael assures him he rightly abhors disobedience, and comforts him by revealing how one righteous man, in whose “seed all nations shall be blest,” is to be brought out of that country into the Promised Land.
Not only does the angel name Abraham, but depicts his life, the captivity in Egypt, the exodus, and the forty years in the desert. He also vouchsafes to Adam a glimpse of Moses on Mount Sinai receiving the tables of the law, and appointing the worship which the Chosen People are to offer to their Creator. When Adam wonders at the number of laws, Michael rejoins that sin has many faces, and that until blood more precious than that of the prescribed sacrifices has been shed, no suitable atonement can be made.
After describing how under the Judges and then under the Kings the people of Israel will continue their career the angel designates David as the ancestor of the Messiah, whose coming will be heralded by a star which will serve as guide to eastern sages. He adds that this Messiah will descend from the Most High by a virgin mother, that his reign will extend over all the earth, and that, by bruising the serpent’s head, he will conquer Sin and Death. This promise fills Adam’s heart with joy, because it partly explains the mysterious prophecy, but, when he inquires how the serpent can wound such a victor’s heel, Michael rejoins that, in order to overcome Satan, the Messiah will incur the penalty of death, revealing how, after living hated and blasphemed, he will prove by his death and resurrection that Sin and Death have no lasting power over those who believe in his name. Full of joy at the promise that the Messiah will lead all ransomed souls to a happier Paradise than the one he has forfeited, Adam declares since such good is to proceed from the evil he has done he doubts whether he should repent.
Between the death of Christ and his second coming, the angel adds that the Comforter will dwell upon earth with those who love their Redeemer, helping them resist the onslaughts of Satan, and that in spite of temptation many righteous will ultimately reach heaven, to take the place of the outcast angels.