The Bible is a book, which, depending upon your views, can either be a guide on how to live life and be a good little Christian, or a book of lies, useful only for wiping your arse on.
Whichever view you take is up to you.
The world needs beliefs, and it needs faith. What it *doesn't* need, is a sect of religious fanatics who take what the Bible says literally, and lives according to how the Bible instructs them.
The Bible is not true. Everyone knows this. That's why people need to believe in it-- they need to have a way (regardless of how illogical and false it may be) to relate to God. Whether God is real or not, I don't know. The Bible is written by man, so that man, generations later, has something to believe in. It is mostly fictional.
I mean sure, two millenia ago there probably were 3 wise men who carried gold, frankinsence and myrrh. There probably was a Moses, and a David, and a guy called Adam and some chick named Eve... But... There's no way that old codger Moses parted the Red Sea (thats 206,901 cubic kilometres of water he allegedly moved aside!). There's no way Jesus turned water into wine (at least not without the aid of grapes and some fermentation apparatus), or created never-ending bread or some shit.
Yada yada yada, bla di bla di bla-- The Bible is good for invoking a sense of morals in people, and gives a good general guide on how life should be lived, but by no means should it ever be taken literally and followed to the letter. Unless of course you happen to me clinically insane or have an IQ below 60... Then you have a reason.
The Bible is a book which provides a quick guide on morals and personal ethics.
"If you live your life by the Bible, then I shall live by the Harry Potter series-- it's no different."