'Thirteenth' in the Bible
And the king's secretaries were called in the first month on the thirteenth day, and [a decree] was issued, according to all that Haman commanded, to the satraps of the king and to the governors who [were] over all the provinces, and to [the] officials of all the people, to each province according to [its own] script and to all people according to their own language; [it was] written in the name of King Ahasuerus and [was] sealed with the king's ring.
Letters [were] sent by couriers to all the provinces of the king to destroy, to kill, and to annihilate all the Jews, {both young and old}, women and children, on one day, the thirteenth day of the month, that [is] Adar, and to plunder their goods.
in one day in all the provinces of King Ahasuerus, on the thirteenth [day] of the twelfth month, which is the month of Adar.
In the twelfth month, that [is] the month of Adar, on the thirteenth day, on which the edict of the king arrived and his law was enacted, on the day in which the enemies of the Jews had hoped to gain power over them but was overturned, [and] the Jews gained power against their enemies,
[This was] on the thirteenth day of the month of Adar. [They] rested on the fourteenth [day] and made it a day of feasting and joy.
But the Jews who [were] in Susa gathered on the thirteenth and on the fourteenth day, and rested on the fifteenth day. And they made it a day of feasting and joy.