Daniel 6:12

12Then they approached and spoke before the king about the king’s injunction: “Did you not sign an injunction that any person who offers a prayer to any god or person besides you, O king, for thirty days, is to be thrown into the lions’ den?” The king replied, “The statement is true, according to the law of the Medes and Persians, which 6:12 Lit does not go awaymay not be revoked.”