Esther 9:24

21 Ordering them to keep the fourteenth day of the month Adar and the fifteenth day of the same month, every year,

22 As days on which the Jews had rest from their haters, and the month which for them was turned from sorrow to joy, and from weeping to a good day: and that they were to keep them as days of feasting and joy, of sending offerings to one another and good things to the poor.

23 And the Jews gave their word to go on as they had been doing and as Mordecai had given them orders in writing;

24 Because Haman, the son of Hammedatha the Agagite, the hater of all the Jews, had made designs for their destruction, attempting to get a decision by Pur (that is, chance) with a view to putting an end to them and cutting them off;

25 But when the business was put before the king, he gave orders by letters that the evil design which he had made against the Jews was to be turned against himself; and that he and his sons were to be put to death by hanging.

26 So these days were named Purim, after the name of Pur. And so, because of the words of this letter, and of what they had seen in connection with this business, and what had come to them,

27 The Jews made a rule and gave an undertaking, causing their seed and all those who were joined to them to do the same, so that it might be in force for ever, that they would keep those two days, as ordered in the letter, at the fixed time every year;