the third year of Cyrus. Called by his appellative "Darius" (= the Restrainer, or Maintainer, in Dan_9:1; Dan_9:424BC.) Two years later than Dan 9. This is Daniel's latest date; which continues to the end of this book, seventythree years since his deportation: he being now eighty-nine years old.
thing = word, or matter.
Belteshazzar. See Dan_1:7.
but the time appointed was long = but [concerned] a long warfare.
time appointed. Hebrew. tzaba. Generally rendered "host" or "army" (Dan_8:10, Dan_8:11, Dan_8:12). Put by Figure of speech Metonymy (of Adjunct), App-6, for warfare.