'Seven' in the Bible

And when these days were expired, the king made a feast to all the people that were present in Shushan the fortress, both to great and small, seven days, in the court of the garden of the king's palace.

On the seventh day, when the king's heart was merry with wine, he commanded Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcas, the seven chamberlains that served in the presence of king Ahasuerus,

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 who sat first in the kingdom),

And the maiden pleased him, and obtained favour before him; and he speedily gave her her things for purification, and her portions, and the seven maidens selected to be given her, out of the king's house; and he removed her and her maids to the best place of the house of the women.