“As living, thinking beings in time, we stand before the mystery of eternal uncreated being and marvel.
On the one hand, it is certain that God is the Eternal One: in Him there is neither past or future, neither becoming or change.
All that He is is eternal: His thought, His will, His decree.
Eternal in Him is the idea of the world that He thinks and utters in the Son; eternal in Him is also the decision to create the world; eternal in Him is the will that created the world in time; eternal is also the act of creating as an act of God, an action both internal and immanent.
For God did not become Creator, so that first for a long time He did not create and then afterward He did create.
Rather, He is the eternal Creator, and as Creator He was the Eternal One, and as the Eternal One He created. The creation therefore brought about no change in God; it did not emanate from Him and is no part of His being.
He is unchangeably the same eternal God.”
–Herman Bavinck, Reformed Dogmatics: God and Creation, Vol. 2 (Ed. John Bolt, and Trans. John Vriend; Grand Rapids, MI: Baker Academic, 2004), 429.