"And I heard, but I understood not: then I said,
Oh my Lord, what shall be the end of these things?
"And the angel said, Go thy way Daniel:
for the words are closed up and sealed
till the time of the end.
"Many shall be purified, and made white, and tried;
but the wicked shall do wickedly;
and none of the wicked shall understand;
but the wise shall understand."
End of the book of Daniel (ch 12 v 8-10)