Genesis 9:29

All the days of Noah. — While Noah attained to the same age as the antediluvian patriarchs, 950 years, human life was fast diminishing. The whole life-time of Shem was 600 years; that of Peleg, a few generations afterwards, only 239. After him only one man, Terah, is described as living more than 200 years, and of his age there is great doubt. (See Note on Genesis 11:32.) Thus before Shem’s death the age of man was rapidly shortening, and things were settling down to that condition in which they are set before us in profane literature.