Matthew Henry Commentary Daniel 6:1-5

"It pleased Darius to set over the kingdom a hundred and twenty satraps, who should be throughout the whole kingdom; and over them three presidents, of whom Daniel was one; that these satraps might give account unto them, and that the king should have no damage. Then this Daniel was distinguished above the presidents and the satraps, because an excellent spirit was in him; and the king thought to set him over the whole realm. Then the presidents and the satraps sought to find occasion against Daniel as touching the kingdom; but they could find no occasion nor fault, forasmuch as he was faithful, neither was there any error or fault found in him. Then said these men, We shall not find any occasion against this Daniel, except we find it against him concerning the law of his God." — Daniel 6:1-5 (ASV)

We note, to the glory of God, that although Daniel was now very old, yet he was still capable in his responsibilities and had remained faithful to his religion. It is to the glory of God when those who profess religion conduct themselves so that their most watchful enemies can find no fault with them, except only in matters concerning their God, in which they walk according to their consciences.