I posed this question to my wife once. I asked her that if in the future, through prayer and time, I came to the sure conclusion that Jehovah is not using the Witnesses to teach the truth and yet through prayer and time she believed different, who's prayer did God answer? And how could she prove it to me, without a doubt?
I got no answer. Funny, the exact same result I get when I pray to God.
Thanks for the topic jwfacts.
CoC