Hi BlackWolf.
I think you are very brave. I did not have the guts to stand up to my parents in the way you are doing now. Trust me, getting baptised will not make your life any easier in regards to your family. Not in the long term, anyway.
More 'privileges and opportunities' open up to you once you get baptised. Especially if you are a male. (Sorry if I have missed you saying if you are male, I have only just come across your post and thought I could help.) You will be pushed and pressured to do more more more, it will never end believe me. Being unbaptized is as easy as it gets, until you can fade and be free at last, obviously.
I said I have too many doubts ( whether this is gods organization, governing body, 1914, overlapping generation ). He said we would study these topics over the next few weeks and then I can make my decision.
Anybody have any advice on how I can easily disprove these topics without sounding like an apostate?
This is my big opportunity to possibly wake up my dad!!
First of all, helping your dad 'wake up' is likely not a very realistic goal at this point. Don't try to do too much at once.
If you don't want to come across as 'apostate', just don't argue with him or debate doctrine. It will likely be fruitless anyway.
Don't try to 'disprove' anything. Let HIM PROVE TO YOU that JW doctrine is correct, from the Bible.
Like so many bible studies out there right now wasting JW's time and going nowhere (from a JW point of view I mean, people not attending meetings and 'progressing' are wasting time), you have the RIGHT to QUESTION everything that doesn't make sense to you, and you have every right to not accept the explanations offered. Just make sure to do it respectfully: "I'm afraid I just can't see where the Scripture says that (whatever the Watchtower claims it is saying)."
Maybe you could just keep saying "I'm sorry, but I just don't understand how/why... *Insert doubt here*." (For example, ''..don't understand why if the first century governing body told everyone where to go and what to do, why is there only one example in the Bible where all the older men came together to discuss a doctrine, in what was likely a large group of men?"
The term "governing body" is 'loaded language' as it never appears in the Scriptures and so has unique application within the pages of the Watchtower. How does the Watchtower justify a Governing Body when the term does not exist in the Bible? This is by reference to the issue of circumcision as discussed in Acts chapter 15. This is the sole Bible example of brothers convening to establish doctrine.
On this occasion, it cannot be said that the decision was made by an established governing body. Acts 15:2 says:
"… they arranged for Paul and Barnabas and some others of them to go up to the apostles and older men in Jerusalem regarding this dispute."
Rather than showing the existence of a small number of 12 leaders being referred to as a governing body, Acts describes a large gathering. This was comprised of the apostles, older men (elders), Paul and Barnabas, who were travelling missionaries, and others. This large group combined to decide on an important issue affecting the local congregations.
The history of the Apostle Paul also shows that there was no centralized governing body directing the early Christians. After Paul's conversion, he did not convene with a governing body or go to Jerusalem to receive an assignment. Rather, he immediately embarked on his missionary work under direction of the Holy Spirit. Paul did not make his first trip to Jerusalem until three years after his conversion, and even then he did not meet with a group of leaders, but just with Peter and James.
www.jwfacts.com/watchtower/governing-body.php
That is only an example, remember.
Or maybe say something like: "The current generation understanding just doesn't make sense to me right now, and I really feel that I must make the truth my own. I cannot teach others something when I don't feel that it makes sense to me."
Generally speaking, be polite and respectful, and let HIM try to convince YOU. He won't be able to. He may even find that his reasoning comes up short..
Then you will be at a stalemate. Others may be able to advise you from there onwards.
All the best. :)
P.s. Here are a few more links that may help you.
www.jwfacts.com/watchtower/organization.php
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www.jwfacts.com/watchtower/generation.php