John Trapp on Daniel 10:2

Ver. 2. In thoſe dayes I Daniel was mourning] Though a great man ſtill, and in great account, yet not now ſo great at Court, as to hinder and defeat the malicious deſigns of Cambyſes his Counſellors; who being bribed by the Jews Adverſaries, put a ſtop to the Temple-work at Jeruſalem, Ezra. 4.1, 2, 3, 4. This diſaſter caſt good Daniel into his dumps, ſo that he faſted three full weeks (à tanto & tali, Abſtinet ab omni cura cultu que corporis, ſua ſponte. See the like, 1 Sam. 31.13. ſed non à toto) and longer might, had not the Angel taken him off by an anſwer of peace, ver. 12.

Three full weeks] Heb. weeks of dayes, to diſtinguiſh them from thoſe Seventy weeks of years, chap. 9.24.