'Seven' in the Bible

When these days were fulfilled, the king made a seven day feast for all the people who were present in Shushan the palace, both great and small, in the court of the garden of the king's palace.

On the seventh day, when the heart of the king was merry with wine, he commanded Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcass, the seven eunuchs who served in the presence of Ahasuerus the king,

and the next to him were Carshena, Shethar, Admatha, Tarshish, Meres, Marsena, and Memucan, the seven princes of Persia and Media, who saw the king's face, and sat first in the kingdom),

The maiden pleased him, and she obtained kindness from him. He quickly gave her cosmetics and her portions of food, and the seven choice maidens who were to be given her out of the king's house. He moved her and her maidens to the best place in the women's house.