Thematic Bible: Decrees of, irrevocable

And you write for the Jews as it pleases you, in the king's name, and seal it with the king's ring. For the writing which is written in the king's name and sealed with the king's ring, no man may turn back. Verse ConceptsSealing The Message

Then they came near and spoke before the king concerning the king's ban, Have you not signed a ban that every man who shall ask a petition of any god or man within thirty days, except of you, O king, shall be thrown into the lion's den? The king answered and said, The thing is true, according to the law of the Medes and Persians, which cannot be changed. Then they answered and said before the king, Daniel, who is of the exiled sons of Judah, has not respected you, O king, nor the ban that you have signed, but makes his prayer three times a day. Then the king, when he heard the word, was very much displeased with himself. And he set his heart on Daniel to deliver him. And he labored until sundown to deliver him. read more.
Then these men met before the king and said to the king, Know, O king, that the law of the Medes and Persians is that no ban nor law which the king establishes may be changed.

Now, O king, establish the ban and sign the writing, so that it may not be changed, according to the law of the Medes and Persians which cannot be changed. Therefore King Darius signed the writing and the ban.