Ecclesiastes 1:13

1:13 I decided to carefully and thoroughly examine

all that has been accomplished on earth.

I concluded: God has given people a burdensome task

that keeps them occupied.

Ecclesiastes 5:20

5:20 For he does not think much about the fleeting days of his life

because God keeps him preoccupied with the joy he derives from his activity.

Ecclesiastes 10:14

10:14 yet a fool keeps on babbling.

No one knows what will happen;

who can tell him what will happen in the future?