2 occurrences across the corpus

NT Apocrypha/Pseudepigrapha

The Apocalypse of Peter 5:11

330 And unto them, the godly, shall the almighty and immortal God grant another boon , when they shall ask it of him. He shall grant them to save men out of the fierce fire and the eternal gnashing of teeth: and this will he do, for he will gather them again out of the everlasting flame and remove them elsewhither, sending them for the sake of his people unto another life eternal and immortal, in the Elysian plain where are the long waves of the Acherusian lake exhaustless 338 and deep bosomed.

OT Pseudepigrapha

The Sibylline Oracles 2:413

With the immortals, in Elysian field,