Try this on the next JW you meet:
1. Ask the JW what religious group Jesus selected in 1919 to be his faithful and discreet slave organisation? The JW will answer: "Pastor Russell & the Bible Students"GOOD!!
2. Now, ask the JW whether Charles Taze Russell and the early Bible Students were anointed Christians, of the heavenly class. The JW will answer: "Why, yes, of course they were."GOOD!!
3. Now, ask the JW whether they are aware that there are still thousands of Bible Students today who believe and preach the same things that C T Russell and the early Bible Students believed and taught. The JW will pause for a bit and then say:"Really? Wow, ok..wasn't aware of that."GOOD!!
4 Now, ask the JW why, if CT Russell and the early Bible Students were definitely anointed, which the Watchtower asserts, and their beliefs were good enough for Jesus to uniquely select them back in 1919, which is also asserted by the Watchtower, then why would they not be good enough for Jesus today? The JW will pause even longer this time, his mind turning over, struggling to get around the logical paradox he sees looming.GOOD!!
5. Finally, ram home the point by saying "this logically means Jehovah's Witnesses cannot be the one true religion because the Bible Students still in existence today must also be acceptable to Jesus since they were acceptable to him in 1919. Both groups have faults but both JW's and the Bible Students today must be OK in God's eyes."The JW will mumble something vague like "Yeah I see your point...possibly...but,..well, I'll have to give that more thought and get back to you.."BINGO!!
This has worked a treat for me with some of my JW friends and relatives. It's a very humbling point that they find practically impossible to get out of. Some of them try to continue to assert that the Bible Students are no longer true Christians by pulling out beliefs unique to the JW's that distinguish them from the early Bible Students, but they are left flailing since all you need to do is fall back on the same logic: If Jesus still accepted the Bible Students as the true religion as they were in 1919, why would he not accept them today? Emphasize this point: "After all, the Bible Students back then and today believe in all the same main doctrines the JW's do, and it seems that is all that really matters in Jesus' eyes". You can also use the same logic for comparing the JW's beliefs of the 1920's (still called BS's then), 30's 40's, 50's etc with JW's beliefs today....there are some differences in beliefs and interpretations yet Jesus still accepted them all; the JW simply cannot deny this! So explain that all you are doing is going back a bit further to the bible students...and then applying the same logic to conclude that the Bible Students groups today are also acceptable to God and Jehovah. They really struggle with this inescapable logic.
Try it for yourself. It's a beautifully simple and devastatingly logical way to seriously undermine a JW's belief that only his organisation alone is the one true religion. You will have planted a real seed of doubt.