For those of us in this community looking from the other side What is one thing that proves to you that this organization does not have Gods backing?
I think that there are a lot of reasons to question the claim of them having God's backing.
At the time of my dedication and baptism we studied at one of the meetings the book "The Nations Shall Know That I Am Jehovah"-How? (Watchtower 1971)
My understanding from this book was that the anointed JW were the modern day Ezekiel commissioned in 1919 to do the work in fulfilment of Matthew 24:14. Appointed as a watchman class to Christendom as Ezekiel had been to the house of Israel.
I learnt that Ezekiel acted out the exact number of days until the destruction of Jerusalem and this had relevance to Christendom.
On page 216 it states
'Shortly, within our twentieth century, the "battle in the day of Jehovah" will begin against the modern antitype of Jerusalem, Christendom'
As far as I am aware this hasn't occurred.
When Ezekiel received the report that Jerusalem,..has been struck down he was vindicated as the watchman and proclaimer of the prophecies.
On page 286 it says,
'...the authentic news comes from all around the earth that the antitypical Jerusalem, Christendom, has fallen at the hands of Jehovah's executional forces! This will be a vindication of the modern-day Ezekiel class, to authenticate that they have not been a false prophet but have been a faithful "watchman" class in sounding out Jehovah's Warnings to Christendom.'
Watchtower April 1,1972 page 200
'Jehovah would confirm him as a prophet then by causing what Ezekiel prophesied to come true.'
As there was no confirmation that I can see for the modern day Ezekiel class I would say that this would/may be the 'one thing' for me