Cross reference
Leviticus 27:7
7 and if from a son of sixty years and above -- if a male, then hath thy valuation been fifteen shekels, and for a female, ten shekels.
Psalms 90:10
10 Days of our years, in them `are' seventy years, And if, by reason of might, eighty years, Yet `is' their enlargement labour and vanity, For it hath been cut off hastily, and we fly away.