Ecclesiastes 6:10-12
10Whatever aexists has already been named, and it is known what man is; and he bcannot dispute with him who is stronger than he is. 11For there are many words which increase vanity. What then is the advantage to a man? 12For who knows what is good for a man during his lifetime, during the few days of his vain life? He will make do with them like a ashadow. For who can tell a man bwhat will be after him under the sun?