@ButterflyJones. You are mistaking the “spirit” for the “soul”...the two are vastly different. This has been the case ever since immortality of the soul was first adopted from paganism. The soul is 100% mortal....that is, the soul can die. (Ezekiel 18:4)
Jesus was a soul...a living breathing human, subject to death as was Adam. Adam was not created to die but to live forever in his mortal flesh. All he had to do to remain living was to obey his Creator. So everlasting life (which is not immortality) was conditional from day one. Obey and live....disobey and die....it wasn’t rocket science.
In order to give his children (both angels and humans) free will, God had to be able to control what they did with that very generous gift....without which the situation in Eden could never have taken place.
Satan was the first one to abuse his free will and he tempted the humans to abuse theirs so that he could gain their worship for himself (2 Cor 4:4)....and here we are, in the final part of the most important object lesson we humans will ever have to experience, and by extension the angels too will have leaned the same lessons.
It has always been about learning to drive free will so that the exercise of it will not impact negatively on others......can you see why God has allowed us to experience these things, even though they are painful?
The lessons learned will carry over into all eternity so that this will never have to happen again. Free will can then become the precious gift it was mean to be....not the curse it became with selfish abuse.