Esther 9:1-2

Now in the twelfth month, which is the month of Adar, on the thirteenth day of the same, when the king’s command and edict were about to be carried out, on the very day when the enemies of the Jews hoped to gain the mastery over them, the reverse occurred: the Jews gained mastery over those who hated them. The Jews gathered in their cities throughout all the provinces of King Ahasuerus to lay hands on those who sought their harm. And no one could stand against them, for the fear of them had fallen on all peoples.