Daniel 8:26-27

“The vision of the evenings and the mornings Which has been told [to you] is true. But keep the vision a secret, For it has to do with many days in the now distant future.” And I, Daniel, was exhausted and was sick for [several] days. Afterward I got up and continued with the king’s business; but I was astounded at the vision, and there was no one who could explain it.