Bhagavad Gita

 BG 2.17 But know That to be indestructible by which all this is pervaded (omnipresent / all pervading). None can bring about the destruction of this Immutable.

BG 2.18 These destructible bodies are said to belong to the everlasting, indestructible, indeterminable, embodied One.

BG 2.20 Never is this One born, and never does It die; nor is it that having come to exist, It will again cease to be. This One is birthless, eternal, undecaying, ancient; It is not killed when the body is killed.

BG 2.21 O Partha, he who knows this One as indestructible, eternal, birthless and undecaying ...
BG 2.24 This Self cannot be cut, burnt, wetted, nor dried up. It is eternal, all-pervading, stable, immovable and ancient.

BG 2.25 It is said that This is unmanifest (avyakta); This is inconceivable; This is unchangeable.

BG 2.72 O Partha, this is the state of being established in Brahman. One does not become deluded after attaining this. One attains identification with Brahman by being established in this state even in the closing years of one's life.
BG 6.30 He who sees Me everywhere and sees everything in Me, he never becomes separated from Me, nor do I become separated from him.