“In the third year of Cyrus king of Persia a thing was revealed unto Daniel, whose name was called Belteshazzar; and the thing was true, but the time appointed was long: and he understood the thing, and had understanding of the vision. long: Heb. great”
Which is to declare that the godly should not hasten too much, but patiently to abide the issue of God’s promise. He noteth this third year, because at this time the building of the Temple began to be hindered by Cambyses Cyrus’ son, when the father made war in Asia minor against the Scythians, which was a discouraging to the godly, and a great fear to Daniel.