For by me thy days shall be multiplied, and the years of thy life shall be increased.
– Proverbs 9:11
[T]he issues of wisdom and folly are often cast in terms of life and death in Proverbs. This is an example of general truism in wisdom literature. Wisdom tends to longer life and folly, or wickedness, tends to shorter life (Proverbs 3:2, 16; 10:27). It is not absolutism so that every wise person lives to be 100 years old and a wise person is never cut off in youth to middle age. Life and death in relation to wisdom and folly also has a spiritual dynamic pointing to more than mortal life on earth (Proverbs 11:7; 14:32). In the immediate context here, days and years being lengthened is the reward of departing from folly and turning in to wisdom. Wisdom provides what is needed for a long, productive, and flourishing life.