At church I hear people's explanations for similar circumstance or events (usually negative) as the devil attacking a strong believer, God testing faith through difficult circumstance, God allowing ...
It seems like Christians tend to only believe in the parts of the Bible, that are considered "good" in today's society. How come, they don't follow all parts of the Bible, since it's the word of God? ...
Are there any core beliefs that all Christian traditions agree on? Are there any that most (>90% of) Christian traditions agree on? If a list can be made for either, are there any caveats?