It doesn't matter whether you believe it or not, truth is truth. The truth doesn't change because you don't believe it. Obviously many people have different beliefs than you or I, to varying degrees. We all have a set of beliefs based upon our experience, our family traditions, our studies, our own sense of logic and intuition, or the people we believe to hold the wisdom to explain the truth to us. Sometimes what we believe is evident but sometimes our beliefs are hidden even from our conscious decision to believe them. I say that because sometimes you say you believe one thing but totally act like you believe another. This can be true for Christians as well. You may intellectually believe the tenets of your Christian Faith but then act in ways contrary to that belief. Maybe you know what you believe but have no idea why you chose to believe it. You based your life on a set of beliefs and when challenged you have nothing to offer sufficient to back up your claims.
God offered a lot of evidence in the new testament to attest to the fact that God was behind all of the miracles recorded there. In the old testament God encouraged the use of reason and logic and offered signs to give evidence to lead people to faith in him. A faith he commanded to be evident by their changed lives.
Does your life evidence the faith claims you espouse? Do you know what you believe and why you believe it? Can you stand and make a defense for you faith?
If you believe the bible is true, is the inspired word of God for instructing your life, and contains your Hope for an eternal life, then are you prepared to defend it as the true, inspired word of God? 1 Peter 3:15 (RSV) says, "Always be prepared to make defense to anyone who calls you to account for the hope that is in you."