Daniel 6:15
Then these men assembled before the king and said: Know, O king that it is a law of the Medes and Persians, that no decree or statute that the king establishes may be changed.
Esther 8:8
Send a letter about the Jews, writing whatever seems good to you, in the king's name, and stamp it with the king's ring: for a writing signed in the king's name and stamped with the king's ring may not be changed.
Daniel 6:12
They approached the king about his decree: Did you sign a decree stating that every man that shall make petition to any god or man within thirty days, except to you, O king, shall be thrown into the den of lions? The king answered: The thing is true, according to the law of the Medes and Persians, which may not be altered.
Psalm 94:20-21
Can wicked rulers be allied with you? They frame mischief by decree (the law).
Daniel 6:8
Now, O king, establish the decree by signing the document. That it will not be changed, according to the law of the Medes and Persians, which cannot be altered.