'Seven' in the Bible

For seven women will take hold of one man in that day, saying, “We will eat our own bread and wear our own clothes, only let us be called by your name; take away our reproach!”

And the Lord will utterly destroyThe tongue of the Sea of Egypt;And He will wave His hand over the RiverWith His scorching wind;And He will strike it into seven streamsAnd make men walk over dry-shod.

The light of the moon will be as the light of the sun, and the light of the sun will be seven times brighter, like the light of seven days, on the day the Lord binds up the fracture of His people and heals the bruise He has inflicted.