It can be proven that God does not direct doctrinal interpretation of the Watchtower Society by the ongoing changes to Watchtower doctrine.
A Witness will retort that the Bible says the “light gets brighter” and so changes are an indication that it is directed by Jehovah. This is nothing more than a justification for error and the fallacy of such a response is discussed in detail at Light Gets Brighter.
This section helps prove that the concept of getting brighter is not valid. In many cases, Watchtower doctrine has not brightened or been enhanced but changed and then reverted back to the original position; flip-flopped. At other times the Watchtower has introduced doctrine as having come from Jehovah, only to later make a complete reversal to what was said.