Ecclesiastes 3:8-12

A time to love, and a time to hate; a time of war, and a time of peace.

What profit hath he that worketh in that wherein he laboureth?

I have seen the travail, which God hath given to the sons of men to be exercised in it.

He hath made every thing beautiful in his time: also he hath set the world in their heart, so that no man can find out the work that God maketh from the beginning to the end.

I know that there is no good in them, but for a man to rejoice, and to do good in his life.