The methodology that Don Cameron used in his book, "Captives of a Concept", neatly and easily disproves the WT's claims of "Truth" and does so in an extremely simple and effective way:
- If what the WT taught in its publications in 1918/1919--when Christ supposedly "inspected" all religions and "chose" them as His earthly representatives to the exclusion of all others--was Truth, then why don't JWs teach and believe those same doctrines today?
- On the other hand, if what JWs teach NOW are accurate, correct words of "Truth", then what Russell taught and the WT published in 1918/1919 was wrong and Christ would NOT have chosen them.
Either way, they lose. It's not hard to understand: The WTBTS is NOT Jehovah's/Christ's chosen organization. They either did NOT teach the Truth in 1918/1919, or they do NOT teach the Truth now, or maybe even both. Again, either way they lose.
This is clear, irrefutable logic: plain and simple. You don't even need to get caught up in the validity of any particular doctrinal point to understand the obvious inherent contradictions of the WTBTS's claim to be the "Faithful and Discreet Slave," which is not-coincidentally the very foundation for their assertion of authority.