This is a perfect example of what is wrong with most institutionalized religion these days. God's unchanging word, huh? Why do people today choose to believe in a god that was defined by people who thought the world was flat? Rather than glorifying a god who expands to encompass our own expanding understanding of the grand universe, they have kept him locked inside a knowledge base established 2000 years ago.
They don't treat their medical needs by following the medical practices of 2000 years ago. Why do they treat their spiritual needs by following the spiritual practices of 2000 years ago?
If god's word doesn't change, how can he speak to me in my ever changing world?