Forget all the other smoke. B-days, xmas, holidays. Forget doctrine issues. Trinity, hellfire, soul, death.
The Watchtower Bible and Tract Society does not claim to be God's mouthpeice based on having all the doctrine correct. They claim to have God's blessing based on having been selected as the mouthpiece in or around 1919 CE. This is the basis of thier claims of having the 'truth', not doctrine. THe doctrines keep changing anyway, as the light 'get brighter'! In fact this religion would be virtually strange to CT Russell or even to Rutherford if they were to come back to life, due to all the doctrinal flips and flops.
Only one issue needs to be proven -
Please prove, without assertion, without skirting, without stepping around the question this - Please prove that the organization known today as Jehovah's Witnesses, and known in 1919 as the International Bible Students Association, was selected by Christ as the 'Faithful slave class' as they claim, due to having proven themselves to be 'dispensing food at the due time'.
This should not be hard to do. Would God be so hapless so as to leave this question unanswerable? When Moses lead the Isrealites out of Egypt he left no doubt. Miracles abounded to prove the claim that God was using Moses. When Jesus walked miracles abounded to prove that he fulfilled the role of Messiah to the jews. Those that refused to accept that died - and will mostly be resurrected according to JW doctrine. But today those who refuse to accept the premise that Jw's are the 'ark of salvation' in this world - are by Jw doctrine damned to eternal death. That means 6 Billion will die. Would a loving God not make it clear with solid evidence that he was using a particular group? Please recognize that this is precisely what they claim, to have been selected by Christ. I just desire the proof of that assertion.
I await. Governing Body members can feel free to contribute to the answer if they like. I will not shun you for your 'apostate acts'.