Esther 9:30

26 Therefore these days are called Purim, from the word Pur. Because of all the instructions in this letter, and because of all they had seen and experienced,

27 the Jews bound themselves to establish the custom that they and their descendants and all who join them should not fail to celebrate these two days at the appointed time each and every year, according to their regulation.

28 These days should be remembered and celebrated by every generation, family, province, and city, so that these days of Purim should not fail to be observed among the Jews, nor should the memory of them fade from their descendants.

29 So Queen Esther daughter of Abihail, along with Mordecai the Jew, wrote with full authority to confirm this second letter concerning Purim.

30 And Mordecai sent letters with words of peace and truth to all the Jews in the 127 provinces of the kingdom of Xerxes,

31 in order to confirm these days of Purim at their appointed time, just as Mordecai the Jew and Queen Esther had established them and had committed themselves and their descendants to the times of fasting and lamentation.

32 So Esther’s decree confirmed these regulations about Purim, which were written into the record.

Read all of Esther 9