The Witnesses teach that Jehovah created man to "live forever" in a paradise earth. This was lost to man (I'm not forgetting Eve ) when he ate from the "tree of knowledge of Good and Bad".
The Watchtower, Oct 15/99 (off the WTBTS Official Site) reads:
The first man, Adam had the prospect of living forever. His body was designed with the necessary faculties to live and enjoy eternal life. Eternal life was conditional, though. Adam had to collaborate with and be obedient to the Source of his life, his Creator, in order to maintian his life perpetually. - Genesis 1:31, 2:15-17
Adam chose to disobey the Creator. In effect, Adam claimed that man is better off ruling himself independent of God. Thus he sinned. From that point onward, it was as if his genetic code was altered. Instead of passing on everlasting life as an inheritance to his offspring, Adam transmitted sin and death. - Genesis 3:6,19; Romans 6:23
I'm not going to deal with the whole account - just the belief that Witnesses have that Jehovah created man to live forever. We were apparently designed that way, and once man disobeyed God, he became imperfect and died. An example of this I've heard used is "like pulling the plug on a fan. You cut off the electrical source and it slowly stops." Since Adam "cut himself off" from his "Life Source" he slowly died.
So, was God's intention for man to be made physically to live forever? What about the "Tree of Life"? If man had NOT eaten from the "Tree of Knowledge of Good and Bad" would he have died? Well according to Gen 3:22 (*note this isn't a look up scripture in the above) "...and now lest he put forth his hand, and take also of the tree of life, and eat, and live for ever."
So his dying wasn't from eating from the tree of Good and Bad, it was FROM NOT eating from the "Tree of Life".
Adam & Eve were NOT created to live forever. They had to eat from a tree and get either a "magic potion from the fruit" or God would have to tinker with their DNA (once they ate) to EXTEND their already created life-spans.
The fact they were going to die was only because God wasn't going to let them eat another piece of fruit. They were already dying. They were NOT initially set up to live forever. Raised as a JW, I was taught that eating from the Tree of Knowledge of Good and Bad is what caused Adam to "lose his life". That he was somehow genetically altered from eating it, and from that act of eating became imperfect, and slowly started to die. He could have "regained" his life by eating from the Tree of Life.
YET, the bible says he died because he did not eat from the "Tree of Life". God created him to die!!!! Nothing was "genetically" altered in him. God just allowed him to continue living the life he was originally create with - no extention to it.
- Please note that I DO NOT BELIEVE the Genesis account to be literal, accurate or even inspired of God, I'm just dealing with a topic that "hit me" compared to what I USE TO believe. -