I believe Genesis is speaking of light and dark (literally), like separating the land from the water.Jon I put in bold the above.
And God saw the light, that good: and God divided the light from the darkness. Gen 1:4
1 John 1:5 This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.
Was the darkness in Gen 1:4 good also? Why did God divide the two?
From Heb 2:14 that through [the] death he might destroy him that had the power of [the] death, that is, the devil;
Before the man of flesh and blood was created from the dust of the ground had God already determined how he would destroy the devil?
Before the man was created was it already foreordained that Christ, as of a lamb without blemish and without spot: would die, shed his precious blood ?
Would that destroy the devil and his works and also redeem the, to be, created man from the earth of flesh and blood ?
Did the sin of the devil precede the sin of the man created flesh and blood out of the earth?
Could the following be said of the man given a spiritual law? Thou shall not eat of it. Rom 7:14 YLT for we have known that the law is spiritual, and I am fleshly, sold by the sin;
Was that Adam's state for the purpose of destroying the devil through Adam and his seed's redemption? Via the seed of the woman taken from the man?
Did the rebellion in heaven of Satan and 1/3 of the angles happen before the Garden? This is almost a non-questiij because it mixes the spiritual realm with the physical. We simply cannot know because it has not been given us to know.
I do not see value in speculating. There are no passages dealing with Satan's fall that intend to give us a timeline in relation to the physical world.
The purpose for "destroying the power of the one who holds the power of death" was to free mankind from Satan's bondage. Satan's time was always limited.