The City of God

are aware of the vast advantage that lies hid in this knowledge? But in this case, in which during so many consecutive generations 100 years are added in one manuscript where they are not reckoned in the other, and then, after the birth of the son and successor, the years which were wanting are added, it is obvious that the copyist who contrived this arrangement designed to insinuate that the antediluvians lived an excessive number of years only because each year was excessively brief, and that he tried to draw the attention to this fact by his statement of their age of puberty at which they became able to beget children. For, lest the incredulous might stumble at the difficulty of so long a lifetime, he insinuated that 100 of their years equalled but ten of ours; and this insinuation he conveyed by adding 100 years whenever he found the age below 160 years or thereabouts, deducting these years again from the period after the son’s birth, that the total might harmonize. By this means he intended to ascribe the generation of offspring to a fit age, without diminishing the total sum of years ascribed to the lifetime of the individuals. And the very fact that in the sixth generation he departed from this uniform practice, inclines us all the rather to believe that when the circumstance we have referred to required his alterations, he made them; seeing that when this circumstance did not exist, he made no alteration. For in the same generation he found in the Hebrew manuscript that Jared lived before he begat Enoch 162 years, which, according to the short year computation, is sixteen years and somewhat less than two months, an age capable of procreation; and therefore it was not necessary to add 100 short years, and so make the age twenty-six years of the usual length; and of course it was not necessary to deduct, after the son’s birth, years which he had not added before it. And thus it comes to pass that in this instance there is no variation between the two manuscripts.

This is corroborated still further by the fact that in the eighth generation, while the Hebrew books assign 182804 years to Methuselah before Lamech’s birth, ours assign to him twenty less, though usually 100 years are added to this period; then, after Lamech’s birth, the twenty years are restored, so as to equalize the total in the two books. For if his design was that these 170 years be understood as seventeen, so as to suit the age of puberty, as there was no need for him adding anything, so there was none for his subtracting anything; for in this case he found an age fit for the generation of children, for the sake of which he was in the habit of adding those 100 years in cases where he did not find the age already sufficient. This difference of twenty years we might, indeed, have supposed had happened accidentally, had he not taken care to restore them afterwards as he had deducted them from the period before, so that there might be no deficiency in the total. Or are we perhaps to suppose that there was the still more astute design of concealing the deliberate and uniform addition of 100 years to the first period and their deduction from the subsequent period⁠—did he design to conceal this by doing something similar, that is to say, adding and deducting, not indeed a century, but some years, even in a case in which there was no need for his doing so? But whatever may be thought of this, whether it be believed that he did so or not, whether, in fine, it be so or not, I would have no manner of doubt that when any diversity is found in the books, since both cannot be true to fact, we do well to believe in preference that language out of which the translation was made into another by translators. For there are three Greek manuscripts, one Latin, and one Syriac, which agree with one another, and in all of these Methuselah is said to have died six years before the deluge.

XIV

That the years in those ancient times were of the same length as our own.

Let us now see how it can be plainly made out that in the enormously protracted lives of those men the years were not so short that ten of their years were equal to only one of ours, but were of as great length as our own, which are measured by the course of the sun. It is proved by this, that Scripture states that the flood occurred in the six hundredth year of Noah’s life. But why in the same place is it also written, “The waters of the flood were upon the earth in the six hundredth year of Noah’s life, in the second month, the twenty-seventh day of the month,”805 if that very brief year (of which it took ten to make one of ours) consisted of thirty-six days? For so scant a year, if the ancient usage dignified it with the name of year, either has not months, or its month must be three days, so that it may have twelve of them. How then was it here said, “In the six hundredth year, the second month, the twenty-seventh day of the month,” unless the months then were of the same length as the months now? For how else could it be said that the flood began on the twenty-seventh day of the second month? Then afterwards, at the end of the flood, it is thus written: “And the ark rested in the seventh month, on the twenty-seventh day of the month, on the mountains of Ararat. And the waters decreased continually until the eleventh month: on the first day of the month were the tops of the mountains seen.”