John14:25-26) 25 "While remaining with YOU I have spoken these things to YOU. 26 But the helper, the holy spirit, which the Father will send in my name, that one will teach YOU all things and bring back to YOUR minds all the things I told YOU.
Jesus said the Father would send the helper, and he identified it. The apostles knew about it, and said they had been "filled with it" and it gave them some impressive skills. Most Christians are in harmony with that thought. The Apostles never once referred to themselves as the "faithful slave" much less "class", but as the "chosen ones."
I believe WT states that the anointed have been here since jesus death...and were always on earth in some form or another all the way up til now. So if jesus said the big helper was this holy spirit, why would there need to be a faithful slave added? And if the anointed were the ones always leading the way for true christians, were they all Faithful Slave? I believe the WT would say that for some reason they became this Faithful Slave "appointed over all my belongings" only in the last days, which i believe they say happened in 1919. Well...if they anointed were ALREADY in the position of leading the way and dispensing food at the proper time....why the need to kinda change the name and form this "CLASS"???.....oompa