Daniel 6:14-15

When King Darius heard this, he was deeply grieved and sought to find a way he could rescue Daniel from his fate. For most of that day until sundown, he wrestled within himself over how Daniel could be spared. But these powerful politicians went back to see the king and insisted, “Bear in mind, Your Majesty, that according to the law of the Medes and Persians, every edict or decree of the king is irrevocable.”