Chariklo said: They will screw up your brain by quoting from the Bible to "prove" that they are right.
This is important to remember. It is easy to get caught up and think "They answer all of my questions right from the Bible!" This is especially easy if you are not a deep Bible student. Keep these things in mind:
1. They have their own version of the Bible. They kept WHO translated the Bible HIDDEN. Why? A former member of their governing body wrote a book and released the names of those that "translated" their Bible. It was men that had little to no knowledge of biblical Greek, Hebrew, or Aramaic. Many were high school dropouts. Their main "scholar" was a college dropout that, when asked to translate something before court, admitted that he did not know how to translate. Here is a partial transcript of that hearing: http://www.witness-outreach.com/Walsh.html
2. The scriptures they use were altered in their Bible. Compare Hebrews 1:8 in any other translation to theirs. Do the same with John 1:1. All reference to Jesus divinity has been removed and words added to take away from His authority.
3. They only know how to use "proof texts". What this means is that they do not know how to interpret the Bible. They will jump from one verse to another without considering the context, culture, history, etc of each passage. They will read a verse, jump to another, and jump to another, making it appear that they have a large knowledge of the Bible. Don't be fooled.