Mordecai the Jew was second only to King Ahasuerus. He was the highest-ranking ¹  Jew, and he was admired by his numerous relatives. ²  He worked enthusiastically ³  for the good of his people and was an advocate for the welfare of ⁴  all his descendants. ⁵ 

Haman then related to his wife Zeresh and to all his friends everything that had happened to him. These wise men, ¹  along with his wife Zeresh, said to him, “If indeed this Mordecai before whom you have begun to fall is Jewish, ²  you will not prevail against him. No, you will surely fall before him!”

Therefore, because of the account found in this letter and what they had faced in this regard and what had happened to them, the Jews established as binding on themselves, their descendants, and all who joined their company that they should observe these two days without fail, just as written and at the appropriate time on an annual basis.

These days were to be remembered and to be celebrated in every generation and in every family, every province, and every city. The Jews were not to fail to observe these days of Purim; the remembrance of them was not to cease among their descendants.

to establish these days of Purim in their proper times, just as Mordecai the Jew and Queen Esther had established, and just as they had established both for themselves and their descendants, matters pertaining to fasting and lamentation.