'Seventh' in the Bible

On the seventh day, as King Ahasuerus was feeling the effects of the wine, he ordered Mehuman, Biztha, Harbona, Bigtha, Abagtha, Zethar, and Carcas, the seven eunuchs who attended him,

Then Esther was taken to King Ahasuerus at his royal residence in the tenth month (that is, the month of Tebeth) in the seventh year of his reign.