Daniel 6:6-8

So these governors and satraps thronged before the king, and said thus to him: “King Darius, live forever! All the governors of the kingdom, the administrators and satraps, the counselors and advisors, have consulted together to establish a royal statute and to make a firm decree, that whoever petitions any god or man for thirty days, except you, O king, shall be cast into the den of lions. Now, O king, establish the decree and sign the writing, so that it cannot be changed, according to the law of the Medes and Persians, which does not alter.”