I agree with a lot here. I disagree with a few points that are not in God's Word, but I understand why you believe it is taught.
Why do you think that Jesus suffered "spiritual death"?
From what I have read there is physical death and there is the "Second death" (when death and Sheol is cast into the Lake of fire). But this "Second death" seems to be related to Judgment (which was "given to Christ", and the condemnation is that the Light came into the world and men rejected the Light).
I see that men are "flesh" and that the "flesh comes first snd then the spirit". And that men, being flesh, are soiritually dead and in need of being "born of the Spirit". But I cannot find any references to "dying spiritually".
It seems that spiritual life is eternal life (that once one is made alive spiritually they never die spiritually).
Will you provide the passages related to this so that I can see what I'm missing?
I think you have a wrong concept of the nature of man and this is causing you all sorts of bad thinking. So, since this is true I will begin in the beginning when God created man the way he wanted him to be and the way in which he will be in eternity. He is not that way now
unless he is "born again" of the Spirit of God. The reason men are not in the image in which God created him is because SIN entered into the world and DEATH by sin and death passed upon all men for ALL have sinned.
I will keep this simple because God is dealing with babes in understanding and he has to give babes building blocks so they can grow with understanding.
So here is the starting place after God had created an environment conducive to man.
Gen 2: 27 And the Lord God formed man of the dust of the ground (body), and breathed into his nostrils the breath of life (the Spirit); and man became a living soul (human soul).
Genesis 1:27
So God created man in his own image, in the
image of God created he him; male and female created he them.
This does not mean that Adam, looking in a mirror saw God. It means that Adam was created a trinitarian entity, a physical body in which both Adam, his soul, the spiritual part of man. the inner man, and the Spirit of Elohim, that person of the trinitarian God, both tabernacled in perfect unity together. When Adam allowed sin in the tabernacle the Spirit cannot co-habit with sin and so departed. This was spiritual death. This happened to Jesus when he became sin for us. The Spirit departed his tabernacle and he suffered, body and
Adam was completely transformed by this deed. He was created in a glorified state. One cannot be in the presence of God unless he is glorified. What other explanation can be given that one who can communicate face to face with God would not know that he was naked. His clothing was righteousness and his body shined as bright as the sun, until he sinned. It was then necessary for a different kind of clothing. The resurrected and glorified bodies of church saints will shine as Jesus body shines. See Lk 3:38 to see that Adam was the "son of God" before the fall. All sons of God, either of the angelic ranks or human who are sons of God are sons because they have indwelling them the Spirit of God. Adam and Jesus are the only two men in the OT times who were "sons of God" although there were other entities who were called sons of God.
What is the one and only hindrance to God, the Spirit, tabernacling with men as a member of their being? It is one thing and one thing only. It is sin. If one can do away with sin then the Spirit can and will indwell the body, giving the man eternal life by his continual presence.
This is as simple as I can make it. I will let you chew on these great truths for a while and then I will show you how the trinitarian image that was lost for all Adams seed was restored by the last Adam, Jesus Christ.
I will leave you with the contrasting types of Adam and Jesus. The word AS points to the type and the word SO to the antitype. This contrast is made at least 5 times in the portion I am quoting and it is very instructive to the spiritual mind.
Rom 12 Wherefore,
as by one man sin entered into the world, and death by sin; and
so death passed upon all men, for that all have sinned:
13 (For until the law sin was in the world: but sin is not imputed when there is no law.
14 Nevertheless death reigned from Adam to Moses, even over them that had not sinned after the similitude of Adam's transgression, who is the figure of him that was to come.
15 But not as the offence, so also is the free gift. For if through the offence of one many be dead, much more the grace of God, and the gift by grace, which is by one man, Jesus Christ, hath abounded unto many.
16 And not as it was by one that sinned, so is the gift: for the judgment was by one to condemnation, but the free gift is of many offences unto justification.
17 For if by one man's offence death reigned by one; much more they which receive abundance of grace and of the gift of righteousness shall reign in life by one, Jesus Christ).
18 Therefore as by the offence of one judgment came upon all men to condemnation; even so by the righteousness of one the free gift came upon all men unto justification of life.
19 For as by one man's disobedience many were made sinners, so by the obedience of one shall many be made righteous.
20 Moreover the law entered, that the offence might abound. But where sin abounded, grace did much more abound:
21 That as sin hath reigned unto death, even so might grace reign through righteousness unto eternal life by Jesus Christ our Lord.
See verse 19. Many does not have to be all but more often than not it is, but all is many.