Esther 9:20-26

20And Mordecai wrote these things, and sent letters to all the Jews near and far that were in all the provinces of king Ahasuerus,

21to establish [this] among them, that they should keep the fourteenth day of the month Adar, and the fifteenth day of the same, yearly,

22as the days on which the Jews rested from their enemies, and the month that was turned to them from sorrow to joy, and from mourning into a good day; that they should make them days of feasting and joy, and of sending portions one to another, and gifts to the poor.

23And the Jews undertook to do as they had begun, and as Mordecai had written to them.

24For Haman the son of Hammedatha the Agagite, the oppressor of all the Jews, had devised against the Jews to destroy them, and had cast Pur, that is, the lot, to consume them and to destroy them;

25and when [Esther] came before the king, he commanded by letters that his wicked device, which he had devised against the Jews, should return upon his own head; and they hanged him and his sons on the gallows.

26Therefore they called these days Purim after the name of Pur. Therefore, according to all the words of this letter, and for what they had seen concerning this matter and what had happened to them,