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.
(..) we found just today. A piece of paper that's been underwater for years... ..and my team were able to preserve it intact. Should this have remained unseen at the bottom of the ocean for eternity ? l'll be goddamned. Brock ! There's a satellite call for you. Bobby, we're launching. (..)1997 Titanic