Adam died because he sinned. He did not have a spiritual body. His body was made from the earth. if he had a spiritual body like the angels of God and those to be resurrected immortal, then he could not have been tempted to sin.
Yes, Adam died because he sinned.....and no, he did not have a spiritual body because he was created as a mortal human with free will. He was given an earthly paradisaic home in which he and his wife were to live and bring forth children, extending the boundaries of this beautiful garden till the whole world was a paradise. It was to be their permanent home. (Genesis 3:22-24)
Where your scenario comes unstuck IMO, is in assuming that a spiritual body was ever needed by the humans whom God created to live a material life on earth FOREVER.
Remember the two specific trees that are mentioned in the garden of Eden?
If there was no possibility of the humans disobeying God’s command concerning the TKGE, then why was there a law stating that this specific tree was God’s property and that ONLY IF they ate from that tree, death would be the penalty? If they had no choice, then God set them up to fail. Do you believe that he did?
Why was the tree even there? Did they have a choice to eat from it or not? If there was no choice then there was no free will. The death penalty was placed before it as a deterrent, but because of free will, God could not prevent them from eating it.....all he could do was put a huge penalty in front of it and hope that his provisions were enough so that the eating of that fruit would not even be on their radar. It created no hardship for them to avoid it.
Enter the devil (an appointed guardian angel who was there in the garden observing all that was happening).....what did satan do to make that tree seem to be a ”must have” to the woman?
He knew that they would die if they ate from the tree, but he needed to separate the humans from their God so that he could take their worship for himself, so he didn’t care. He told the woman that she would be “like God” if she ate the fruit, (it was he who wanted to be "like God") and he also lied about the penalty, telling her that she would not die.
This was an appeal to self interest...and it worked because he made it seem like a good idea...and he took the penalty away in her mind. Adam came on the scene and realized what she had done, leaving him with two agonizing choices.....obey his God and retain his own life...or join her and bring death on both of them, and as a result condemning all of their future children to the same fate. Again this was en exercise of his free will. Temptations cannot MAKE anyone break God’s laws....only we can do that by exercising our free will.
Now what about the other tree in the garden? This one was not off limits and it was their only means of “living forever” which was God’s purpose for humankind in the first place. After the pair ate from the forbidden fruit, God acted quickly to bar the way to “the tree of life”. Death would now overtake them, but though their spiritual death was immediate, their physical death was to take place after God allowed them to “fill the earth” with their children....all of whom were now born encumbered by sin....and needing God to rescue them from this endless cycle.
Can you tell me, from your perspective, why did God not eliminate all three rebels there and then, preventing what would inevitably happen? Why did he permit them to live and bring forth sinful children, who were all now subject to death.....and permit the devil to cause such extreme hardship among mankind? What is the purpose of this life?
I think it's the book of Enoch where those "Giants" are said to have been 450 feet tall. yikes! that's big.
The text indicates that the Nephilim were there, and afterwards, when the sons of God continued to take those women. The text also seems to be added as a reason why the sons of God may have been so attracted to those men and their daughters. They are said to be "men of renown".
Your ideas come straight from Greek mythology.
Noah was given 120 years before God acted to rectify the awful situation that existed on earth at that time.
Noah would have time to produce his children and to begin construction of an enormous structure (a box designed to float, not a boat designed navigate) to preserve all life inside of it. So the Nephilim were in existence then and afterwards, as they continued to wreak havoc in the world of mankind, who had apparently adapted to those conditions. (Matthew 24:37-39)
Since all of the Nephilim perished in the flood, they were completely eradicated from the earth because they had no right to exist.Any mention of the "Nephilim" in the Bible after that time were erroneous referral to the pre-flood Nephilim applied to tall races of people including the "sons of Anak".
I'll tackle the rest later FWIW....let's just get this cleared up first.