|"Eru Ilúvatar and the Timeless Halls" by Enano Akd|
The Timeless Halls are the dwelling of Eru, as distinct from the Void. They have existed before and outside the boundaries of the Eä, the created universe, and may or may not have a physical form. Although without limit, they are said to stretch from the Abyss to the Firmament.
In Bilbo's Song of Eärendil, the halls of Manwë and Varda are referred to as "The Timeless Halls."