'Twelfth' in the Bible

In the first month, that [is], the month of Nisan, in the twelfth year of King Ahasurus, he cast pur--that [is], the lot--before the presence of Haman {for the day and for the month}, until the twelfth month, that [is], the month of Adar.

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,