'Seven' 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,

Those who were closest to him were Carshena, Shethar, Admatha, Tarshish, Meres, Marsena, and Memucan. These men were the seven officials of Persia and Media who saw the king on a regular basis and had the most prominent offices in the kingdom.

This young woman pleased him, and she found favor with him. He quickly provided her with her cosmetics and her rations; he also provided her with the seven specially chosen young women who were from the palace. He then transferred her and her young women to the best quarters in the harem.