'Seven' in the Bible

She who gave birth to seven has withered away. She gasps her breath. Her sun {set} while still day. She has been put to shame and disgraced. And the remainder of them I will give to the sword {before} their enemies," {declares} Yahweh.

"At [the] end of seven years you must let go each one his fellow countryman, the Hebrew who has been sold to you and who has served you six years, and you must let him go free from you." But your ancestors did not listen to me, and they did not incline their ears.

And from the city he took one high official who was chief officer over {the soldiers}, and seven men of {the king's advisors} who were found in the city, and the secretary of the commander of the army who levied for military service the people of the land, and sixty men of the people of the land who were found in the midst of the city.

in [the] twenty-third year of Nebuchadnezzar, Nebuzaradan, [the] captain of [the] guard, deported seven hundred and forty-five Judean persons; [there were] four thousand six hundred persons in all.