-Why? God is batshit fuckin crazy.
Possibly. Or perhaps the God of the Bible operates on spiritual principles (Laws) instead of physical ones, being a spirit and all. (Your dictionary says that "spirit" is, "the animating force")
So that, as a matter of perspective, when a child dies in the OT during a war that God permitted, perhaps God feels that being with him is not worse than living here. (Paul said that, "to be absent from the flesh is to be present with God)
And when God allows Job to be persecuted by the leader of the fallen angels, who still has access to the halls of Heaven today and rules the earthly realm as the Prince of the Power of the Air, perhaps God and Job both know that it will be made up to him.
In these stories, what ever mix of fact, fantasy, or metaphor they might be, God operates by spiritual laws, and, having once said a thing, sticks by it.
Which makes it tough to be God in the since that you have to watch what you say because whatever you speak becomes reality. And once you say it, it is Law.
Which is why Jesus played the part of the kinsman redeemer from the old Law, a substitute able and wiling to pay a price that had to be paid.
As a spirit, flesh is corruption to God, and he isn't partial to it. But, according to the story, he created ADM in the image of spirits, and enjoyed his creation. (Also likes gardens and music)
One gets the impression from these stories that Lucifer, the Chief Musician, second in command, and most beautiful of God's messengers grew pissed about God's new friend the hu-man, and thought God had abrogated his own laws by letting ADM and mankind live after they broke the law, "for sin (missing the mark, being imperfect spiritually) comes death".
Of course, God had an out in the kinsman redeemer concept, which allows for a physical/spiritual being to be tolerated until it becomes a solely spiritual being.
God lost Lucifer and a third of heaven during this jealous, misguided revolt, and man appears to be their replacement.
Now, that's just fragments of the story as told in the original language, some of it real, some metaphoric, some added by later translators.
On the surface, it's easier to understand why one would not believe such apparent ancient claptrap than it is to understand why one would believe it
But, over a couple of millenia, millions of people have followed the thread begun in Genesis (Job was actually probably written down before Moses wrote most of Genesis) as it weaved it's way into a fabric of fascinating beauty and intricately interwoven complexity that is both intriguingly possible and yet to be completed.
Of course if you think it impossible in our reality, read up on quantum entanglements or the QM theorized source of gravity, and get back to me.