Daniel 10:1-3

1In the third year of Cyrus king of Persia a thing was revealed unto Daniel, whose name was called Belteshazzar; and the thing is true, but the appointed time of trial is long; and he understood the thing, and had understanding of the vision.

2In those days I Daniel was mourning three full weeks:

3I ate no pleasant bread, neither came flesh nor wine into my mouth, neither did I anoint myself at all, till three full weeks were fulfilled.