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.
(..) would you have done it? I would rather have had... one breath of her hair... one kiss of her mouth... one touch of her hand... than an eternity without it. One. Subtitles by ARAVIND B (..)1998 City of Angels
(..) He loves you that much. I don't understand. He can fall. He can give up his existence as he knows it. He can give up eternity and become... one of us. It's up to you. How do you know this? Because I did it. Seth? (..)1998 City of Angels