DOCTRINE OF THE TWO NATURE - By Evangelist Bobby Colardo

If I am saved, why do I still sin?
Why do I have such a problem with sin while I am here on earth?
Why am I still troubled with impure thoughts? 
Why do I sometimes do what I know is wrong? 
Why do I sometimes fail to do what I know is right? 
Why do I continue to battle with temptations?
Why do I sometimes live and act like an unsaved person, even though it grieves me and saddens me when I live this way?