Ecclesiastes 9:5; Ecclesiastes 9:10

Ecclesiastes 9:5

5 For the living know that they will die, but the dead know nothing; they have no further reward, and even their name is forgotten.

Ecclesiastes 9:10

10 Whatever your hand finds to do, do it with all your might, for in the realm of the dead, where you are going, there is neither working nor planning nor knowledge nor wisdom.