Go on, take one lucky guess as to how many of those who claim themselves to be christians do NOT read the bible?
Of course the question that is required to be asked if "if" you believe in god, then "why" do you believe in god?
Of course you'd have to prove that god exists also... minus all the deliberate hate, genocides, suffering, pain, anger, wrath, evil, vengeance, rage, fury, jealousy of all things that no supreme deity would ever have for any reason as jealousy is nothing more than anger as disguised fear as proved in the stickum bible. And then to pass down all those emotions to man so in turn man could learn to hate with all the evil in his brain with at least 1 billion dead all in the supposed "good" name of god on the battlefields alone. That's what you christians worship. That's hardly perfection from an imperfect god/ supreme deity especially when all the evil and hate is not needed, required nor is it a necessity. But in god's turgid world it most certainly is.