Esther 9:21-23

New International Version - UK

²¹ that they should celebrate annually the fourteenth and fifteenth days of the month of Adar ²² as the time when the Jews got relief from their enemies, and as the month when their sorrow was turned into joy and their mourning into a day of celebration. He wrote to them to observe the days as days of feasting and joy and giving presents of food to one another and gifts to the poor.

²³ So the Jews agreed to continue the celebration they had begun, doing what Mordecai had written to them.