Barna's Annual Tracking Study Shows Americans Stay Spiritually Active, But Biblical Views Wane

This is the direct result of philosophical post-modernism on the church.
Soon, we’ll be hearing from the “orthodox” that Satan was Jesus’ brother.
From the Barna Group:
It is not unusual to spot minor ebbs and flows in what adults believe. However, the 2007 study of the nation’s core beliefs found that five out of six theological perspectives have shifted in recent years away from traditional biblical views. This includes perspectives about three spiritual figures: God, Jesus, and Satan.
Most Americans still embrace a traditional view of God, but they are less likely than ever to do so. Currently two-thirds of Americans believe that God is best described as the all-powerful, all-knowing perfect creator of the universe who rules the world today (66%). However, this proportion is lower than it was a year ago (71%) and represents the lowest percentage in more than twenty years of similar surveys.
Few adults possess orthodox views about Jesus and the Devil. Currently, just one-third of Americans strongly disagree that Jesus sinned (37%) and just one-quarter strongly reject the idea that Satan is not a real spiritual being (24%). Each of these beliefs is lower than last year and among the lowest points in nearly two decades of tracking these views.
The other changes in beliefs include greater reluctance to explain their faith to other people (just 29% strongly endorse this view, compared with 39% in 2006) and the willingness to reject good works as a means to personal salvation (down to 27% from 31%).
Given these shifts, it is ironic that the only religious belief that was unchanged from previous years was the belief that the Bible is accurate in all the principles it teaches. Not quite half of Americans (45%) strongly assert this perspective.