Daniel 6:6-9

Then these presidents and princes assembled together to the king, and said thus unto him, King Darius, live for ever. All the presidents of the kingdom, the governors, and the princes, the counsellors, and the captains, have consulted together to establish a royal statute, and to make a firm decree, that whosoever shall ask a petition of any God or man for thirty days, save of thee, O king, he shall be cast into the den of lions. Now, O king, establish the decree, and sign the writing, that it be not changed, according to the law of the Medes and Persians, which altereth not. Wherefore king Darius signed the writing and the decree.