The serpent told a lethal half truth. Adam and Eve DID die: immediately in spirit (broken fellowship with God, hiding in shame) and eventually in body (expelled from the tree of life, returned to dust). Their “opened eyes” brought shame, fear, and alienation, not the godlike wisdom promised.
Truth telling isn’t just technical accuracy about isolated facts while omitting the devastating consequences. The entire biblical story that follows is about reversing the death, spiritual and physical, that genuinely resulted from that moment.
