The following is from a wonderful site called Atheist Revolution:
When Behavior Betrays
We find beliefs useful primarily to the degree that they help us understand and ultimately predict behavior. If there was no relationship between what someone believed and how someone behaved, it would be hard to regard belief as relevant. We care about belief largely because it helps us predict behavior.
It is not surprising, then, to be puzzled when we encounter someone who is acting contrary to his or her professed beliefs. We wonder whether such an individual has been lying about what he or she believes, has not bothered to seriously consider the implications of his or her beliefs, or is impaired in some way.
Ken claims to be a "bible-believing Christian" who regards his preferred bible as the inerrant word of his particular god. And yet, he does not expect his wife to submit to him (Colossians 3:18, Titus 2:5, and 1 Peter 3:1), does not forbid her to wear jewelry (1 Peter 3:2-6), and would never dream of offering his daughters up to rapists (2 Peter 2:8. Ken helps his widowed sister out financially even though his bible says he should ignore her plight (1 Timothy 5:5-15). And believe it or not, Ken actually lets his wife come to church with him without either covering or shaving her head (1 Corinthians 11:5-7)! So much for taking his bible seriously, huh?
What are we to make of Ken? If he really believes that his bible is inerrant, he has a very odd way of showing it. His behavior is certainly not consistent with what he says about his beliefs.