According to Rutherford, who believed to be the appointed by Christ in 1918, the Holy Spirit was no more necessary after this year:
“It would seem that there would be no necessity for the ‘servant’ to have an advocate such as the holy spirit, because the ‘servant’ to have an advocate is in direct communication with Jehovah and as Jehovah’s instrument, and Christ Jesus acts for the entire body.” (Watchtower, September 1, 1930 p. 263, p. 263)
“After the holy spirit as an advocate or paraclete ceased to function in behalf of the consecrated, then the angels are employed in behalf of those who are being made ready for the kingdom. ‘For he shall give his angels charge over thee, to keep thee in all they ways’ -Ps. 91:11″ (Preservation, 1932 p. 51-52)
“By his spirit, the holy spirit, Jehovah God guides or leads his people up to a certain point of time, and thus he did until the time when ‘the comforter’ was taken away, which would necessarily occur when Jesus, the Head of his organization, came to the temple and gathered unto himself those whom he found faithful when he, as the great Judge, began his judgment, in 1918.” (Preservation, 1932, p. 193-194)