Daniel 10:1-2

New Revised Standard Version, Anglicised Catholic Edition

Conflict of Nations and Heavenly Powers

10 In the third year of King Cyrus of Persia a word was revealed to Daniel, who was named Belteshazzar. The word was true, and it concerned a great conflict. He understood the word, having received understanding in the vision.

² At that time I, Daniel, had been mourning for three weeks.