there is the concept in Witness publications that the Christian scriptures was written for the anointed ones.
Historical Christianity including the apostles believe the same thing. The switch happened when the WT convinced people that they could still be Christians without being anointed. The WT changed the definition of what anointed meant in the bible. A JW will think that it means going to heaven. But "anointed" is the same as "being declared righteous" and also the same as being "Justified".
No Justification = no salvation from judgment.
Therefore being justified by faith, we have peace with God through our Lord Jesus Christ:... Much more then, being now justified by his blood, we shall be saved from wrath through him. - Romans 5: 1&9