'Seven' in the Bible

When these days were completed, the king gave a banquet lasting seven days for all the people who were present at the citadel in Susa, from the greatest to the least, 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, Abagtha, Zethar and Carkas, the seven eunuchs who served in the presence of King Ahasuerus,

and were close to him: Carshena, Shethar, Admatha, Tarshish, Meres, Marsena and Memucan, the seven princes of Persia and Media who had access to the king’s presence and sat in the first place in the kingdom—

Now the young lady pleased him and found favor with him. So he quickly provided her with her cosmetics and food, gave her seven choice maids from the king’s palace and transferred her and her maids to the best place in the harem.