The Common Denominator of those who Live. (Genesis 5:6-20)

5: 6-8 And all the days of Seth were nine hundred and twelve years; and he died.
5: 9-11 And all the days of Enosh were nine hundred and five years; and he died.
5:12-14 And all the days of Kenan were nine hundred and ten years; and he died.
 5:15-17 And all the days of Mahalalel were eight hundred ninety and five years; and he died.
5:18-20 And all the days of Jared were nine hundred sixty and two years; and he died.

The New Testament comment on this common denominator is instructive.
             - “It is appointed for man to die once.” (Hebrews 9:27)