This is from her book, Evolving in Monkey Town.

I was a fundamentalist because my security and self-worth and sense of purpose in life were all wrapped up in getting God right—in believing the right things about him, saying the right things about him, and convincing others to embrace the right things about him too. Good Christians, I believed, don’t succumb to the shifting sands of culture. Good Christians, I used to think, don’t change their minds …

I was a fundamentalist not because of the beliefs I held but because of how I held them: with a death grip. It would take God himself to finally pry some of them out of my hands.