6 Bible Verses about Unknown Future

No one is certain what is to be, and who is able to say to him when it will be?

Who is able to say what is good for man in life all the days of his foolish life which he goes through like a shade? who will say what is to be after him under the sun?

The foolish are full of words; man has no knowledge of what will be; and who is able to say what will be after him?

So I saw that there is nothing better than for a man to have joy in his work--because that is his reward. Who will make him see what will come after him?

In the day of wealth have joy, but in the day of evil take thought: God has put the one against the other, so that man may not be certain what will be after him.

There is no memory of those who have gone before, and of those who come after there will be no memory for those who are still to come after them.