Daniel 6:9

6 Then these presidents and princes assembled to the king, and said thus to him, King Darius, live for ever.

7 All the presidents of the kingdom, the governors, and the princes, the counselors, and the captains, have consulted together to establish a royal statute, and to make a firm decree, that whoever 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.

8 Now, O king, establish the decree, and sign the writing, that it may not be changed, according to the law of the Medes and Persians, which altereth not.

9 Wherefore king Darius signed the writing and the decree.

10 Now when Daniel knew that the writing was signed, he went into his house; and his windows being open in his chamber towards Jerusalem, he kneeled upon his knees three times a day, and prayed, and gave thanks before his God, as he did before.

11 Then these men assembled, and found Daniel praying and making supplication before his God.

12 Then they came near, and spoke before the king concerning the king's decree; Hast thou not signed a decree, that every man that shall ask [a petition] of any God or man within thirty days, save of thee, O king, shall be cast into the den of lions? The king answered and said, The thing [is] true, according to the law of the Medes and Persians, which altereth not.