She promised to love him for all 'eternity'. [=to love him forever]
We suffered through an 'eternity' of delays during the lawsuit.
They believed that sinners would spend 'eternity' in hell.
(..) was insatiable. So the heathen gods placed upon the gold a terrible curse. Any mortal that removes but a single piece from that stone chest shall be punished for eternity. I hardly believe in ghost stories anymore, Captain. Aye. That's exactly what I thought when we were told the tale. (..)2003 Pirates of the Caribbean: The Curse of the Black Pearl