Psalms 90:10

The days of our years are threescore years and ten, literally, "The days of our years in them seventy years," not worth mentioning, an insignificant sum; and if by reason of strength, that is, if a man possesses unusual vitality, they be fourscore years, if he actually reaches the age of eighty years, yet is their strength, even that about which men are wont to boast, labor and sorrow, vanity and foolishness, misery and grief. How foolish, then, for men to regard this life as the most desirable thing and to neglect the care for eternity! For it is soon cut off, the life of mortals glides past speedily, and we flyaway. All the events of life move past our eyes in rapid flight; there is nothing stable, nothing lasting, in this world. Moses now draws his conclusion, summarizing the points contained in the previous paragraphs.