Daniel 6:15; Esther 8:8

15 Then these men came by agreement to the king and said to the king, Know, O king, that it is a law of the Medes and Persians that no jinjunction or ordinance that the king establishes can be changed.

But you may write as you please with regard to the Jews, in the name of the king, xand seal it with the king's ring, for an edict written in the name of the king and sealed with the king's ring ycannot be revoked.