What is death when it comes to realm of God?
I am not sure where you are coming from but I see death as well as sleep in a spiritual sense. When Adam died he did not die at that moment, he lived to be well over nine-hundred years old that is as we know death. But he died spiritually; not that his spirit was totally dead; but a sleep. A dead man cannot see, smell, touch taste or feel; and this is especially true if you are spiritually dead. With this in mind I present the following scriptures.
For: Ecclesiastes 12:7 Then shall the dust return to the earth as it was: and the spirit shall return unto God who gave it.
Ecclesiastes 7: 1A good name is better than precious ointment; and the day of death than the day of one's birth
When came to this earth He died, in that He left the realm of spirit and took upon the realm of death.
Praise God it is a fact the more new walk by His anointing the weaker our flesh will become and we will subdue us as well as every form of resistance of the carnal nature until it is His life alone that is made manifest. Nothing like the glorious anointing of the Holy Spirit to make us weak - weak yet very strong for there is power released of which few know anything about because they have refused to accept the sphere of weakness where in He is made strong.
Death is used to die out to which caused us to be entangled. After that the death process, after that comes salvation with its more abundant life. Thought death there is much that is destroyed-made non effect. It brings an end to so many things. All the old life, the carnality, the self life, the will the imaginations, the intents. But destroyed by the cross. However God does not desire fellowship with a corpse, so needs to follow a resurrection to much more divine living.
1 Corin. 1:25 (Amp) [This is] because the foolish thing [that has its source in] God is wiser than men, and the weak thing [that springs] from God is stronger than men. 26For [simply] consider your own call, brethren; not many [of you were considered to be] wise according to human estimates and standards, not many influential and powerful, not many of high and noble birth. 27[No] for God selected (deliberately chose) what in the world is foolish to put the wise to shame, and what the world calls weak to put the strong to shame. 28And God also selected (deliberately chose) what in the world is lowborn and insignificant and branded and treated with contempt, even the things that are nothing, that He might depose and bring to nothing the things that are, 29So that no mortal man should [have pretense for glorying and] boast in the presence of God.
30But it is from Him that you have your life in Christ Jesus, Whom God made our Wisdom from God, [revealed to us a knowledge of the divine plan of salvation previously hidden, manifesting itself as] our Righteousness [thus making us upright and putting us in right standing with God], and our Consecration [making us pure and holy], and our Redemption [providing our ransom from eternal penalty for sin].
Above all, the weakness is an attitude of the heart, weather it has any outward forms expressed or not, it really does not matter when we know in ourselves that we are nothing so we lean heavily on Him. Drawing from Him that strength which is equal to the need, and that grace which is truly sufficient for all things. How precious does the Spirit help our weakness, as we rise to walk in that new creative life.
Romans 8: 19For [even the whole] creation (all nature) waits expectantly and longs earnestly for God's sons to be made known [waits for the revealing, the disclosing of their sonship].
20For the creation (nature) was subjected to [9] frailty (to futility, condemned to frustration), not because of some intentional fault on its part, but by the will of Him Who so subjected it--[yet] with the hope(4)
21That nature (creation) itself will be set free from its bondage to decay and corruption [and gain an entrance] into the glorious freedom of God's children.
22We know that the whole creation [of irrational creatures] has been moaning together in the pains of labor until now.(5)
23And not only the creation, but we ourselves too, who have and enjoy the firstfruits of the [Holy] Spirit [a foretaste of the blissful things to come] groan inwardly as we wait for the redemption of our bodies [from sensuality and the grave, which will reveal] our adoption (our manifestation as God's sons).
24For in [this] hope we were saved. But hope [the object of] which is seen is not hope. For how can one hope for what he already sees?
When Adam died, we all died, so to die daily is the second death; or death to self.