'Seven' in the Bible

And when those days were completed, the king gave for all the people that were present at the citadel of Susa, both great and small, a banquet in the courtyard of the king's palace garden that lasted seven days.

On the seventh day, when the heart of the king was merry with wine, he said to Mehuman, Biztha, Harbona, Bigtha, Abagtha, Zethar, and Carcas, seven of the eunuchs attending King Ahasuerus,

and those next to him were Carshena, Shethar, Admatha, Tarshish, Meres, Marsena, Memucan, the seven officials of Persia and Media who {had access to the king} and sat first in the kingdom--

{The young woman pleased him} and she won favor in his presence, and he quickly provided for her beauty treatment and her portion of food, with seven chosen maids to give to her from the {king's palace}, and he advanced her and her maids to the best part of the {harem}.