10. These are the generations of Shem. Concerning the progeny of Shem, Moses had said something in the former chapter Genesis 10:1 : but now he combines with the names of the men, the term of their several lives, that we might not be ignorant of the age of the world. For unless this brief description had been preserved, men at this day would not have known how much time intervened between the deluge and the day in which God made his covenant with Abraham. Moreover, it is to be observed, that God reckons the years of the world from the progeny of Shem, as a mark of honor: just as historians date their annals by the names of kings or consuls. Nevertheless, he has granted this not so much on account of the dignity and merits of the family of Shem, as on account of his own gratuitous adoption; for (as we shall immediately see) a great part of the posterity of Shem apostatized from the true worship of God. For which reason, they deserved not only that God should expunge them from his calendar, but should entirely take them out of the world. But he too highly esteems that election of his, by which he separated this family from all people, to suffer it to perish on account of the sins of men. And therefore from the many sons of Shem he chooses Arphaxad alone; and from the sons of Arphaxad, Selah alone; and from him also, Eber alone; till he comes to Abram; the calling of whom ought to be accounted the renovation of the Church. As it concerns the rest, it is probable that before the century was completed, they fell into impious superstitions. For when God brings it as a charge against the Jews, that their fathers Terah and Nahor served strange gods, (Joshua 24:2,) we must still remember, that the house of Shem, in which they were born, was the peculiar sanctuary of God, where pure religion ought most to have flourished; what then do we suppose, must have happened to others who might seem, from the very first, to have been emancipated from this service? Hence truly appears, not only the prodigious wickedness and depravity, but also the inflexible hardness of the human mind. Noah and his sons, who had been eye-witnesses of the deluge, were yet living: the narration of that history ought to have inspired men with not less terror than the visible appearance of God himself: from infancy they had been imbued with those elements of religious instruction, which relate to the manner in which God was to be worshipped, the reverence with which his word was to be obeyed, and the severe vengeance which remains for those who should violate the order prescribed by him: yet they could not be restrained from being so corrupted by their vanity, that they entirely apostatized. In the meantime, there is no doubt that holy Noah, according to his extraordinary zeal and heroic fortitude, would contend in every way for the maintenance of God’s glory: and that he sharply and severely inveighed, yea, fulminated against the perfidious apostasy of his descendants; and whereas all ought to have trembled at his very look, they are yet moved by no chidings, however loud, from proceeding in the course into which their own fury has hurried them. From this mirror, rather than from the senseless flatteries of sophists, let us learn how fruitful is the corruption of our nature. But if Noah and Shem, and other such eminent teachers could not, by contending most courageously, prevent the prevalence of impiety in the world; let us not wonder, if at this day also, the unbridled lust of the world rushes to impious and perverse modes of worship, against all the obstacles interposed by sound doctrine, admonition, and threats. Here, however, we must observe, in these holy men, how firm was the strength of their faith, how indefatigable their patience, how persevering their cultivation of piety; since they never gave way, on account of the many occasions of offense with which they had to contend. Luther very properly compares the incredible torments, by which they were necessarily afflicted, to many martyrdoms. For such an alienation of their descendants from God did not less affect their minds than if they had seen their own bowels not only lacerated and torn, but cast into the mire of Satan, and into hell itself. But while the world was thus filled with ungodly men, God wonderfully retained a few under obedience to his word, that he might preserve the Church from destruction. And although we have said that the father and grandfather of Abraham were apostates, and that, probably, the defection did not first begin with them; yet, because the Church by the election of God, was included in that race, and because God had some who worshipped him in purity, and who survived even to the time of Abraham. Moses deduces a continuous line of descent, and thus enroll them in the catalogue of saints. Whence we infer, (as I have a little before observed,) in what high estimation God holds the Church, which, though so small in numbers is yet preferred to the whole world.
Shem was an hundred years old. Since Moses has placed Arphaxad the third in order among the sons of Shem, it is asked how this agrees with his having been born in the second year after the deluge? The answer is easy. It cannot be exactly ascertained, from the catalogues which Moses recites, at what time each was born; because sometimes the priority of place is assigned to one, who yet was posterior in the order of birth. Others answer, that there is nothing absurd in supposing Moses to declare that, after the completion of two years, a third son was born. But the solution I have given is more genuine.