Ester 9:1

The Jews Prevail over Their Enemies

9:1 In the twelfth month (that is, the month of Adar), on its thirteenth day, the edict of the king and his law were to be executed. It was on this day that the enemies of the Jews had supposed that they would gain power over them. But contrary to expectations, the Jews gained power over their enemies.

Ester 9:5

9:5 The Jews struck all their enemies with the sword, bringing death and destruction, and they did as they pleased with their enemies.

Ester 9:17-19

9:17 All of this happened on the thirteenth day of the month of Adar. They then rested on the fourteenth day and made it a day for banqueting and happiness.

The Origins of the Feast of Purim

9:18 But the Jews who were in Susa assembled on the thirteenth and fourteenth days, and rested on the fifteenth, making it a day for banqueting and happiness. 9:19 This is why the Jews who are in the rural country – those who live in rural cities – set aside the fourteenth day of the month of Adar as a holiday for happiness, banqueting, holiday, and sending gifts to one another.

Ester 9:21

9:21 to have them observe the fourteenth and the fifteenth day of the month of Adar each year

Ezra 6:15

6:15 They finished this temple on the third day of the month Adar, which is the sixth ¹  year of the reign of King Darius.

[6:15]  ¹ sn The sixth year of the reign of Darius would be ca. 516 B.C.