My Dear GW, your geometry is impeccable. You get an “A+”, but our topic is chronology.
Perhaps you can give me the current date and time in Heaven? I’d like to set my watch by it.
A soul can begin at a known point in time, and extend "forever after", just as a ray can in space.
God can be forever in both directions, just as a line.
So I didn't understand why a soul lasting forever would need to imply that it had existed from all eternity.
The time in Heaven is "Eternity".
Nobody on this side of the pearly gates has defined a Jacobian to map between that coordinate system and ours.
Obligatory red herring: Since God is the "unmoved mover" does this imply the existance of a true inertial reference frame in Him, and therefore, that General Relativity is invalid in Heaven?
Follow up: Riddle me this, Batman. "In Him is Light and in Him there is no darkness at all." Is it applicable to the preceeding, or a coincidence?