'Seven' in the Bible

Now it came about in the days of Ahasuerus, (that Ahasuerus who was ruler of a hundred and twenty-seven divisions of the kingdom, from India as far as Ethiopia:)

And at the end of that time, the king gave a feast for all the people who were present in Shushan, the king's town, small as well as great, for seven days, in the outer square of the garden of the king's house.

On the seventh day, when the heart of the king was glad with wine, he gave orders to Mehuman, Biztha, Harbona, Bigtha, and Abagtha, Zethar, and Carcas, the seven unsexed servants who were waiting before Ahasuerus the king,

And second only to him were Carshena, Shethar, Admatha, Tarshish, Meres, Marsena, and Memucan, the seven rulers of Persia and Media, who were friends of the king, and had the first places in the kingdom:)

And he was pleased with the girl and was kind to her; and he quickly gave her what was needed for making her clean, and the things which were hers by right, and seven servant-girls who were to be hers from the king's house: and he had her and her servant-girls moved to the best place in the women's part of the house.

Then at that time, on the twenty-third day of the third month, which is the month Sivan, the king's scribes were sent for; and everything ordered by Mordecai was put in writing and sent to the Jews and the captains and the rulers and the chiefs of all the divisions of the kingdom from India to Ethiopia, a hundred and twenty-seven divisions, to every division in the writing commonly used there, and to every people in their language, and to the Jews in their writing and their language.

And he sent letters to all the Jews in the hundred and twenty-seven divisions of the kingdom of Ahasuerus, with true words of peace,