From this discrepancy between the Hebrew books and our own arises the well-known question as to the age of Methuselah;166 for it is computed that he lived for fourteen years after the deluge, though Scripture relates that of all who were then upon the earth only the eight souls in the ark escaped destruction by the flood, and of these Methuselah was not one. For, according to our books, Methuselah, before he begat the son whom he called Lamech, lived 167 years; then Lamech himself, before his son Noah was born, lived 188 years, which together make 355 years. Add to these the age of Noah at the date of the deluge, 600 years, and this gives a total of 955 from the birth of Methuselah to the year of the flood. Now all the years of the life of Methuselah are computed to be 969; for when he had lived 167 years, and had begotten his son Lamech, he then lived after this 802 years, which makes a total, as we said, of 969 years. From this, if we deduct 955 years from the birth of Methuselah to the flood, there remain fourteen years, which he is supposed to have lived after the flood. And therefore some suppose that, though he was not on earth (in which it is agreed that every living thing which could not naturally live in water perished), he was for a time with his father, who had been translated, and that he lived there till the flood had passed away. This hypothesis they adopt, that they may not cast a slight on the trustworthiness of versions which the Church has received into a position of high authority,167 and because they believe that the Jewish mss. rather than our own are in error. For they do not admit that this is a mistake of the translators, but maintain that there is a falsified statement in the original, from which, through the Greek, the Scripture has been translated into our own tongue. They say that it is not credible that the seventy translators, who simultaneously and unanimously produced one rendering, could have erred, or, in a case in which no interest of theirs was involved, could have falsified their translation; but that the Jews, envying us our translation of their Law and Prophets, have made alterations in their texts so as to undermine the authority of ours. This opinion or suspicion let each man adopt according to his own judgment. Certain it is that Methuselah did not survive the flood, but died in the very year it occurred, if the numbers given in the Hebrew mss. are true. My own opinion regarding the seventy translators I will, with God's help, state more carefully in its own place, when I have come down (following the order which this work requires) to that period in which their translation was executed.168 For the present question, it is enough that, according to our versions, the men of that age had lives so long as to make it quite possible that, during the lifetime of the first-born of the two sole parents then on earth, the human race multiplied sufficiently to form a community.
For they are by no means to be listened to who suppose that in those times years were differently reckoned, and were so short that one of our years may be supposed to be equal to ten of theirs. So that they say, when we read or hear that some man lived 900 years, we should understand ninety, – ten of those years making but one of ours, and ten of ours equalling 100 of theirs. Consequently, as they suppose, Adam was twenty-three years of age when he begat Seth, and Seth himself was twenty years and six months old when his son Enos was born, though the Scripture calls these months 205 years. For, on the hypothesis of those whose opinion we are explaining, it was customary to divide one such year as we have into ten parts, and to call each part a year. And each of these parts was composed of six days squared; because God finished His works in six days, that He might rest the seventh. Of this I disputed according to my ability in the eleventh book.169 Now six squared, or six times six, gives thirty-six days; and this multiplied by ten amounts to 360 days, or twelve lunar months. As for the five remaining days which are needed to complete the solar year, and for the fourth part of a day, which requires that into every fourth or leap-year a day be added, the ancients added such days as the Romans used to call "intercalary," in order to complete the number of the years. So that Enos, Seth's son, was nineteen years old when his son Cainan was born, though Scripture calls these years 190. And so through all the generations in which the ages of the antediluvians are given, we find in our versions that almost no one begat a son at the age of 100 or under, or even at the age of 120 or thereabouts; but the youngest fathers are recorded to have been 160 years old and upwards. And the reason of this, they say, is that no one can beget children when he is ten years old, the age spoken of by those men as 100, but that sixteen is the age of puberty, and competent now to propagate offspring; and this is the age called by them 160. And that it may not be thought incredible that in these days the year was differently computed from our own, they adduce what is recorded by several writers of history, that the Egyptians had a year of four months, the Acarnanians of six, and the Lavinians of thirteen months.170 The younger Pliny, after mentioning that some writers reported that one man had lived 152 years, another ten more, others 200, others 300, that some had even reached 500 and 600, and a few 800 years of age, gave it as his opinion that all this must be ascribed to mistaken computation. For some, he says, make summer and winter each a year; others make each season a year, like the Arcadians, whose years, he says, were of three months. He added, too, that the Egyptians, of whose little years of four months we have spoken already, sometimes terminated their year at the wane of each moon; so that with them there are produced lifetimes of 1000 years.
By these plausible arguments certain persons, with no desire to weaken the credit of this sacred history, but rather to facilitate belief in it by removing the difficulty of such incredible longevity, have been themselves persuaded, and think they act wisely in persuading others, that in these days the year was so brief that ten of their years equal but one of ours, while ten of ours equal 100 of theirs. But there is the plainest evidence to show that this is quite false. Before producing this evidence, however, it seems right to mention a conjecture which is yet more plausible. From the Hebrew manuscripts we could at once refute this confident statement; for in them Adam is found to have lived not 230 but 130 years before he begat his third son. If, then, this mean thirteen years by our ordinary computation, then he must have begotten his first son when he was only twelve or thereabouts. Who can at this age beget children according to the ordinary and familiar course of nature? But not to mention him, since it is possible he may have been able to beget his like as soon as he was created, – for it is not credible that he was created so little as our infants are, – not to mention him, his son was not 205 years old when he begat Enos, as our versions have it, but 105, and consequently, according to this idea, was not eleven years old. But what shall I say of his son Cainan, who, though by our version 170 years old, was by the Hebrew text seventy when he beget Mahalaleel? If seventy years in those times meant only seven of our years, what man of seven years old begets children?
But if I say this, I shall presently be answered, It is one of the Jews' lies. This, however, we have disposed of above, showing that it cannot be that men of so just a reputation as the seventy translators should have falsified their version. However, if I ask them which of the two is more credible, that the Jewish nation, scattered far and wide, could have unanimously conspired to forge this lie, and so, through envying others the authority of their Scriptures, have deprived themselves of their verity; or that seventy men, who were also themselves Jews, shut up in one place (for Ptolemy king of Egypt had got them together for this work), should have envied foreign nations that same truth, and by common consent