Ecclesiastes 3:9-11

⁹What profit hath now he that worketh in that wherein he toileth?

¹⁰I have seen the employment, which God hath given to the sons of men to busy themselves therewith.

¹¹Every thing hath he made beautiful in its proper time: he hath also placed the eternity in their heart, without a man's being able to find out the work that God hath made from the beginning to the end.