Why do Christians trust the Bible?

[Tonus]

Is faith a valid way of looking at the world? No. It certainly isn't. BUT it certainly is a valid way of comprehending the mysteries in the world until explanations pop up.

It was probably just the best option. It's simply the way our minds work-- we have to make a judgment call on anything we don't understand, so that we can take action to deal with it. That rustling in the bushes may be the wind, or it may be a predator... waiting to find out could be fatal, so we make a quick decision (it's a lion!) and take action (run!).

The system doesn't work so well when we're confronted with more mundane issues that nonetheless pique our curiosity. What causes rain? What are those white dots in the night sky? What causes the seasons? And so on. A valid way to comprehend those mysteries is to observe, hypothesize, and test. Thousands of years ago, testing might involve sacrificing a goat or performing a ritual dance, and seeing if the crops failed or thrived. Today, we know that those aren't related in any way.

If god had been there, he would've told those folks that it was a darn shame, wasting a goat like that. On the other hand, dancing was a good aerobic workout, even if it wasn't going to make it rain.