my mother told me how she believe that Jehovah God is patiently keeping the door open, since every year, new ones come into the "truth".
Yes, this is the drivel that keeps all the faithful Dubs going out month after month, year after year, decade after decade, century after century. It really is a weak argument if only they would stop to think about it. Yes there are new ones baptized every year, but probably 90% of these are people that were born into the troof, it's not ones coming in from "the world". I'm not sure what the monthly average in hours is any more, but for simplicity sake, let's still put it at 10 hours per month. My congregation has around 75 publishers, so that's 750 hours per month. Plus we have I think 6 regular pioneers who fake get 70 hours per month, so that's another 420 hours. Add these two together, and that's 1,170 hours spend in Service in one month. In one year, that's just over 14,000 hours. In ten years, that's just over 140,000 hours.
You know how many people have actually become a Witness in my congregation in the last ten years? Two people as far as I can tell. That's it. So over 140,000 hours were spent on two converts. Funny thing is, one of them's already left.
They go door to door because Jesus went door to door
Actually, there is no evidence that Jesus ever went door to door. There is no reference in the bible that He preached this way; He either went and preached in the synagogues, out in a open space like on the Mount of Olives, or in an informal way with people around. Nothing mentioned in the NT about Jesus going knock, knock knocking on the Jews' doors every Saturday morning, marking down how many scrolls he placed, or how many hours he spent doing this, or that he ever made a Return Visit on anyone. If someone wanted to hear Him talk, they were more than welcome to, but Jesus never offered anyone a home bible study based on literature written by the Pharisees.
If you want to see a modern day elder squirm, just mention this to them. They got no comeback as per usual.