 If you start out with any other assumption about Scripture, then you're going to put yourself in the position where you're going to have to say, I believe this is where the Scripture is true. I believe this is where the Scripture is mixed with some error. I believe this is where the text is absolutely wrong. Inerrancy makes all the difference in the world. That's one of the hardest lessons evangelical Christians had to learn in the last half of the 20th century. It was a question as old as the Garden of Eden with that question, hath God said?