Few Christians believe basic biblical teachings

I recently came across this in a biblical commentary:

"A survey of American Christian adults by the Barna organization a few years ago revealed that less than 10 percent believe in certain basic biblical principles. Those principles included believing that the Bible is accurate in all of its teachings and reveals God-given truth; that God is the all-knowing, all-powerful Creator who still rules the world today; that salvation is a gift from God and not something you earn; that Satan is real; and that Christians have the responsibility to share their faith with non-Christians."

Obviously, statistics can be manipulated to prove anything, but if this is true, it is remarkable.

It is also big trouble.