Ecclesiastes 6:10-12

10Whatever one is, he has been named already, For it is known that he is man; And he cannot contend with Him who is mightier than he.

11Since there are many things that increase vanity, How is man the better?

12For who knows what is good for man in life, all the days of his vain life which he passes like a shadow? Who can tell a man what will happen after him under the sun?