When we say God is eternal, we mean God is eternally young.
“The outward person is the old person, the earthly person, the person of this world, who grows old from ‘from day to day.’ His end is death… The inward person is not at all in time or place but is purely and simply in eternity. It is there that God arises… [and] is heard, there God is; there God, and God alone, speaks.”
Meister Eckhart quoted in Matthew Fox, The Coming of the Cosmic Christ