If you're curious about arguments for Christianity versus Atheism you should check out this book which does a great job of summarizing Christian apologetic arguments:
https://www.amazon.com/Dont-Have-Eno...gateway&sr=8-3
Interestingly, one of the co-authors who has recently passed away, Norman Geisler, was involved in critiquing the writings of Witness Lee.
The other co-author has a youtube channel with videos of him visiting college campuses and answering questions from students skeptical about Christianity:
https://www.youtube.com/user/TurekVi...rt=p&flow=grid
It's unfortunate but not surprising that the local churches have little or no apologetics resources, but there are actually a lot of good reasons to believe in Christianity that are out there.