And out of the ground the LORD God made to spring up every tree that is pleasant to the sight and good for food. The tree of life was in the midst of the garden, and the tree of the knowledge of good and evil.” (Genesis 2:9)
God allowed Adam to eat from all the trees except the tree of the knowledge of good and evil, warning him that death would result.
After Adam disobeyed God’s command regarding the tree of the knowledge of good and evil, God forbade Adam to eat from the tree of life lest he live forever in that state; therefore God guards the tree.
Are you understanding yet?
I'm understanding that NOWHERE does it say God intended Adam to live forever but SPECIFICALLY it says God kicked Adam out of Eden TO STOP HIM LIVING FOREVER.
Seems unambiguous to me.
Of course, if one is trying to make it fit with the Christian story, which isn't based on Genesis but on a line in Paul, which reflects an idea that originated midrashwise among the Jews of Alexandria late in the second century BCE, then one has to invent things and pretend they're in the Garden story. I do my best to avoid doing that.
And I take careful note that at the time Eve ate the fruit, she had no knowledge of good and evil and therefore was incapable of forming any intention to do wrong and was therefore incapable of sin. And exactly the same is true of Adam. Only after they'd eaten the fruit could they have sinned.
And of course I point out that the words 'sin', 'original sin', 'the fall of man', 'death entering the world', 'spiritual death', or any need for a redeemer, are found NOWHERE in the story. That's not what the story is about.
The most probable point of the Garden story, it seems to me, is to provide a bridge from the story of the creation of man to the beginning of Hebrew folk history, by devising an account of the growth of man from infancy (innocence) to adolescence (sexual awareness, knowledge) to leaving home and fending for oneself. However, that's only tangentially relevant to the point that in the story the snake tells no lies.
(Many Christians like to identify the snake with Satan, but of course nothing like that is in the story either.)