John Trapp on Daniel 1:21

Ver. 21. And Daniel continued, &c.] And afterwards alſo, though ſhrewdly lifted at under Darius, chap. 6.4. and in the third year of Cyrus he was overborn by the Councellours hired to hinder the building of the Temple, whom he could not withſtand, and therefore kept an extraordinary faſt, Ezra 4.5. with Dan. 10.3, 4.