'Seven' in the Bible

The mother of seven is without strength; her spirit is gone from her, her sun has gone down while it is still day: she has been shamed and overcome: and the rest of them I will give up to the sword before their haters, says the Lord.

At the end of seven years every man is to let go his countryman who is a Hebrew, who has become yours for a price and has been your servant for six years; you are to let him go free: but your fathers gave no attention and did not give ear.

And from the town he took the unsexed servant who was over the men of war, and seven of the king's near friends who were in the town, and the scribe of the captain of the army, who was responsible for getting the people of the land together in military order, and sixty men of the people of the land who were in the town.

In the twenty-third year of Nebuchadrezzar, Nebuzaradan, the captain of the armed men, took away as prisoners seven hundred and forty-five of the Jews: all the persons were four thousand and six hundred.