To admit that there is One who lies beyond us, who exists outside of all our categories, who will not be dismissed with a name, who will not appear before the bar of our reason, nor submit to our curious inquiries: this requires a great deal of humility, more than most of us possess, so we save face by thinking God down to our level, or at least down to where we can manage Him. Yet how He eludes us! For He is everywhere while He is nowhere, for ”where” has to do with matter and space, and God is independent of both. He is unaffected by time or motion, is wholly self-dependent and owes nothing to the worlds His hands have made.
A.W. Tozer, The Knowledge of The Holy
God is self-existent, God has always been...Our Maker exists in an eternal, self-sustaining, necessary way, necessary, that is, in the sense that God does not have it in Him to go out of existence, just as we do not have it in us to live forever. We necessarily age and die, because it is our present nature to do that; God necessarily continues forever unchanged, because it is His eternal nature to do that. This is one of many contrasts between creature and Creator...God's self existence is basic truth.
J.I. Packer , Concise Theology
"The God who made the world and everything in it, being(D) Lord of heaven and earth,(E) does not live in temples made by man,[a] 25nor is he served by human hands,(F) as though he needed anything, since he himself(G) gives to all mankind(H) life and breath and everything."
"I will not accept a bull from your house
or goats from your folds.
10For every beast of the forest is mine,
the cattle on a thousand hills.
11(O) I know all the birds of the hills,
and all that moves in the field is mine.
12"If I were hungry, I would not tell you,
(P) for the world and its fullness are mine.
13Do I eat the flesh of bulls
or drink the blood of goats?"
The Self- Existence of God - D.H. Kuiper
The Self-Existence of God - The Knowledge of the Holy: A.W. Tozer
Self Existence and Immensity of God
The Self- Existence of God - A.W. Tozer
The Relative, Self-Existence of God - Al Boyce