I agree with Mary, the bible is a handbook that we should use to give guidance to our lives. People in religions want to put their own slant on it and want others to accept it - which is why there is discord, because lets be honest, no one like to be told what to do by someone else in this context.
It is like having the manual for your car/washing machine or whatever and being told by someonelse that the instructions mean this or that and then they get all arsey when you point out that the book says press the 'on button' not pull.
Rutherford did not want an organisation and warned against it, but as we know Rutherford steamrollered that idea and set one up anyway to flog his books and now look what has evolved.