Do these people not read their bibles?
I think it's pretty obvious they don't. But, what percentage of professing Christians do you think have actually read the Bible cover to cover? I bet it's pretty small. I lead a fairly large mens Bible study group for my church and have gotten all to agree to follow a daily "read the bible in a year" plan this year. It takes about 20 minutes a day. I will be very interested to see how many actually stick with it.