'Irrevocable' in the Bible

Therefore, Your Majesty, establish the edict and sign the document so that, as a law of the Medes and Persians, it is irrevocable and cannot be changed.”

So they approached the king and asked about his edict: “Didn’t you sign an edict that for 30 days any man who petitions any god or man except you, the king, will be thrown into the lions’ den?”The king answered, “As a law of the Medes and Persians, the order stands and is irrevocable.”