You need to understand that most of these people have never cracked the Bible open, let alone actually try to read it as a collection of 55 separate books mostly chronling One tribe and of their stories covering poetry, life lessons, spirituality, morality, etc over roughly a 3,000 ish year time span bound in one binding.
Or to put this in perspective. Imagine somebody made a supercut of all Star wars media ever produced all of the clone wars episodes, the prequels all of the new Disney shit and they made it into one massive supercut. That's what the Bible is.