Daniel 6:12

So they approached the king and reminded him of his royal decree: “Your Majesty, did you not sign a decree forbidding everyone for thirty days to pray to any god or man except to you, O king, under penalty of being thrown into the lions’ den?” “Yes, I did, and my decree is final,” the king answered. “It is irrevocable according to the law of the Medes and Persians.”