Daniel 6:1-3

It seemed good to Darius [who became king after Belshazzar] to appoint over the kingdom 120 satraps who would be in charge throughout the kingdom, and over them three chief commissioners (of whom Daniel was one), that these satraps might be accountable to them, so that the king would have no loss [from disloyalty or mismanagement]. Then this Daniel, because of the extraordinary spirit within him, began distinguishing himself among the commissioners and the satraps, and the king planned to appoint him over the entire realm.