The Watchtower is not the instrument of any man or set of men, nor is it published according to the whims of men. No man's opinion is expressed in The Watchtower. –The Watchtower, November 1, 1931, page 327
For an answer, people should listen to the plain preaching by the remnant prefigured by Jeremiah, for these preach to men the present-day fulfillment of Jeremiah's prophecies. Who made them a prophet to speak with the authority that they claim? Well, who made Jeremiah a prophet? –The Watchtower, January 15, 1959, page 39.
Who will be Jehovah's prophet to the nations, to speak to them everything that He should command? Who will be the modern Jeremiah? ... Jehovah's witnesses are deeply grateful today that the plain facts show that God has been pleased to use them. ... Jehovah thrust out his hand of power and touched their lips and put his words in their mouths... –The Watchtower, January 15, 1959, page 40-41.
Unlike the clergy class, those of the Jeremiah classhave been sent by Jehovah to speak in his name. –The Watchtower, September 1, 1979, page 29.