'Seven' in the Bible

And seven women shall take hold of one man in that day, saying, We will eat our own bread, and wear our own apparel: only let us be called by thy name; take thou away our reproach.

And Jehovah will utterly destroy the tongue of the Egyptian sea; and with his scorching wind will he wave his hand over the River, and will smite it into seven streams, and cause men to march over dryshod.

Moreover the light of the moon shall be as the light of the sun, and the light of the sun shall be sevenfold, as the light of seven days, in the day that Jehovah bindeth up the hurt of his people, and healeth the stroke of their wound.