'all of eternity' is a correct and usable phrase in written English.
It is used to refer to an extremely long period of time. For example: "They were best friends for all of eternity."
It's like you're just saying it's nothing but blood, sweat and tears forever, for all of eternity.
It's vulgar, I know, but I couldn't see spending all of eternity without a Jacuzzi in the master bathroom suite.
But then Linklater himself shows up (playing pinball) and says that a single moment may contain all of eternity.
For a sizeable fee, fans can spend all of eternity (well not quite eternity, €6,000 gets you 90 years) in the Barcelona mausoleum.
Thanks to the closure of Fabric, the clubber as we knew him (and her) has been relegated to the chillout room for all of eternity.
He takes her home and she invites him in, serving him the most awkward piece of pie that has ever been served in all of eternity.
It's the desert of cracked laughter, plans gone awry, the whimsy of eternity — all the old American pains abandoned to the sand.
Bathing suit-clad park goers shoot out the blue tube like big ol' flesh bullets, with blankets of water suspending them in the air for all of pixilated eternity.
The vampire drama of Twilight is all about the romantic agony of eternity, and this franchise feels like it's going on for ever.
Most companies could now spend the rest of eternity reviewing all the possibilities presented to them!
I was only a bit surprised that the press reports did not contain a statement reading "Maestro Pavarotti has cancelled all performances for the remainder of eternity".
