I would like to add the words of Rutherford on 1918:
The evidence shows that a great separating work has been going on since 1918...... The evidence is conclusive that the Lord is now in his temple and that there is a unity of faith and knowledge among those who are in the temple. There is now a clearer vision of God's purposes revealed to the temple class. ….....But it seems certain that when Jesus came to his temple and began his work of judgment he would direct his holy angels to take the necessary action to cause the separation of the disapproved from the approved ones, and would use his angels to bear messages to them to direct the approved ones as to what to do. (The Watchtower September 1st 1930 Issue, Page 262,263)