And in the second month, on the seven and twentieth day of the month,.... This was the month Marchesvan, as the Targum of Jonathan, which answers to part of our October, and part of our November; though according to Bishop Usher , this day was Friday the eighteenth of December, A.
M. 1657; it was on the seventeenth of this month that Noah went into the ark, Ge 7:11 so that be was in it twelve months and ten days, according to a solar year; but if the reckoning is made according to Jewish months, six of which consisted of thirty days, and six of twenty nine only, then the twelve months made but three hundred and fifty four days, add to which eleven days to the twenty seventh, fully ended, it makes three hundred and sixty five days; so that he was in the ark just a full year, according to the course of the sun; but it seems very plain that the months here reckoned consisted of thirty days, since the one hundred and fifty, days when the waters abated are reckoned, from the seventeenth day of the second month, to the seventeenth day of the seventh month; which make exactly five months, and allow thirty days to a month: and at this time, when Noah had waited almost two months, after he had removed the covering of the ark,was the earth dried; so that it was fit to walk upon, and was become commodious both for man and beast: a different word from that in the preceding verse is here used for "dry", this being a different kind, or, however, a greater degree of dryness than the other.
Ut supra. (Annales Vet. Test. p. 4.