oh i think i hv the ans!! lol, frm the same book again!
erm,lets see......
Adam and Eve did not have sinful natures as we had. So the
temptation of sin must come from outside. The bible describes this
source as the serpeant(gen3:1) used by the devil to aliniate man
from God.
Why did God not prevent evil from entering the universe since He
knew in adv wad wld happen? Why did he not make man incapable of
sinning? God could have
done so but we wld not have the image of God or be humans with
freedom if God had done so.
so its all about sinful nature. Sin was outside them. They
chose.