Daniel
Daniel 6:8BSB·traditional attribution

Therefore, O king, establish the decree and sign the document so that it cannot be changed—in accordance with the law of the Medes and Persians, which cannot be repealed.”

John Calvin Reformed @genevareformer

Here, as I have said, it is sufficiently apparent how inclined to fallacies are the minds of kings when they think they can benefit themselves and increase their own dignity. For the king did not dispute long with his nobles but subscribed the edict; for he thought it might prove useful to himself and his successors: if he found the Chaldeans obedient to himself and...

Matthew Henry Presbyterian @wholebiblehenry

Daniel's adversaries could have no advantage against him from any law now in being; they therefore contrive a new law, by which they hope to ensnare him, and in a matter in which they knew they should be sure of him; and such was his fidelity to his God that they gained their point. Here is, I. Darius's impious law.

Commenting on Daniel 6:6-10

John Gill Reformed Baptist @doctorgill

Now, O king, establish the decree, and sign the writing,.... For they had not only agreed upon it among themselves what to propose, as to the substance of it; but they had drawn it up in writing, ready to be signed, which they urge to have done immediately: that it be not changed, according to the law of the Medes and Persians, which altereth not...