The bible is not just a book. It's a book that is claimed to be divinely inspired. You have you way to understand it but a thousand other Christians have their own way to understand it. You want to use fields of study that most people in the word don't have time to study becasue of their situation. That makes it unaccessible to much of the world. Is that what God intended?
I'm not going to have an answer to every single question you can pull out of your skull since the Biblical books and letters weren't written to provide answers to every single question that any one single person could possibly come up with. However, I think there's way more than enough indication in the biblical contents to tell us that God has purposely intended for each person to learn and grow along average means of education, and not through some kind of instantaneous, 'magical' processes (despite what some people who claim to be Christian might also claim about their understanding about the Bible).
Why should I spend my time on Christianity and not another religion? Which one do I dedicate my time to? I studied for 18 years as a christian and in the end it was no good evidence for belief.
Existentially, that's all up to what you feel motivated as a person to 'check out.' Personally, I'm a Christian because, like you, I've wanted to check out various religious ideas over the years and thus far, Christianity holds the most meaning to me. And that might not sound like 'faith' to some people, and I don't really care if it does or not, but I do know one thing: my following of Christianity isn't primarily a result of my parents having 'inculcated' me in it. If anything, I was the one pressing them to engage it over the years ...
How much study does a person need to understand god? If this is what your god requires then most people in earth cannot know about god.
Clizby, I know you're fairly new to these forums, but for quite a long time now, here on CF, I haven't been the one who claims that the epistemic structures by which faith comes are all put in place by mere human study. No, I'm sure most folks here know that all I've ever stated is that human learning, even at its best, can only carry a person some part of the way toward Christ; but ultimately, it will take some additional orchestration by God Himself to get you over that final hurdle to "the having of faith." NO amount of learning by itself can, or ever has, gotten a person to 'faith' in Christ, but it is intended to definitely help along the way as a part of the human process of having belief and faith.
Again why spend my time on Christianity?
That's up to you to figure out. If you don't have a motivation by which to want to understand Christianity, then there's little or nothing the rest of us can do for you on that personal front. As for me, I just ask myself: Why wouldn't I want to live forever in a painless, happy bliss with a God and Lord who loves me and is able to take me away from me all the crap I have to deal with in this World as well ...
Moreover, I might put the ball back in your court and ask why you spend any time at all in honest interaction with Christians, Clizby? You've got time and intellect for coming onto CF, but you don't have time for anything else? Really? I find that hard to believe.