What can claim to be a scholar when it comes to understanding Him?
Yet God demonstrated that it is possible for man to live absolutely pure, holy lives - hey remember our Saviour who came in the flesh just like you and me?
You are right we are not to live as the world does but today the line has become blurry. Much leaven has entered the lump wouldn't you agree? So how can we tell if one lives as the world or not?
Don't we all agree the bible is the infallible word of God? Didn't Paul say all scripture is God breathed and is useful for teaching for reproof, for correction, and for training in righteousness? So it depends on how one's definition is to live by the law isn't it - whether one thinks he can be justified or sees he's not worthy?
Can we be holy, as He is holy? Can we be perfect, for He is perfect?
I'm going to go out on a limb to ask this question - if He came in a weak flesh like you and me and through obedience lived a sinless life, why can't we? I don't have the answer.