Thematic Bible: Confirmed by royal authority

Esther the queen, daughter of Abihail, and Mordecai the Jew, sent a second letter giving the force of their authority to the order about the Purim. He sent letters to all the Jews in the hundred and twenty-seven divisions of the kingdom of Ahasuerus, with true words of peace, Giving the force of law to these days of Purim at their fixed times, as they had been ordered by Mordecai the Jew and Esther the queen. This was in keeping with the rules they had made for themselves and their descendents, in connection with their time of going without food and their cry for help. read more.
The order given by Esther gave the force of law to the rules about the Purim. It was recorded in the book.