John Trapp on Daniel 5:29

Ver. 29. Then commanded Belſhazzar, and they cloathed Daniel] No nay but they would do it, and he at length admitted it: partly, that he might not ſeem to ſlight the Kings courteſy and to be diſaffected: and partly, that thereby he might be the better known to the Perſians, for the comfort of Gods poor people.

And put a chain of gold about his neck and made a proclamation, &c.] All this the King commanded to be done, out of an admiration of Daniel's divine wiſdom, and that he might be dicti ſui dominus as good as his word. But not a word hear we of his repentance, ſuch was his ſtupidity: nor doth Daniel exhort him to it, becauſe he ſaw him to be paſt feeling, and knew that the decree was gone forth.