22 And the Lord God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever: 23 Therefore the Lord God sent him forth from the garden of Eden, to till the ground from whence he was taken. 24 So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life.
Verse 22 suggests that if Adam and Eve had eaten of the tree of life at this point they would have become immortal, which would mean living forever in their fallen state. It was therefore a great act of mercy that God drove them from that temptation and placed a guard over it.
This notion of living forever has obsessed man ever since. For millennia we have told of the Fountain of Youth, of the Nectar of the Gods, and more recently of medications and de-aging practices that stretch this short life out longer and longer. We may have all manner of pain in this life, but the notion of losing it still terrifies us, and we would give anything to escape that end.
Of course God promises us that death is only a portal to something better. He assures that a short walk into the dark gives way to a bright light at the other end. But it takes great faith to trust in that, and all of us have days where we would trade God’s promise of heaven for Eden’s tree of life. We would limit ourselves to eternity in the fallen world if given the chance. And this is perhaps the ultimate struggle we face. Learning to stop clutching to our world of pain, letting go of control, and just trusting that we will be caught in unseen glories.