The atheist in our day likes to claim that people believe what the Bible says simply because they have to. This is a distortion of the actual case. I believe the Bible is what it says it is because what I read there impresses me it is indeed the word of God.
It's easy to forget how 'spot on' the Bible was in its characterization of man. In the first few chapters of Genesis (written originally perhaps 6000 years ago) we read that man was created in God's image. We can see this as a prediction of man's future greatness. It expresses a profound understanding of man's intellectual capacities.
Remember that this was before the pyramids, before Pythagoras, before Euclid and Galen, before the Parthenon and Plato, before the great cathedrals, before the universities, before Kepler and Newton, before the microscope and the computer.
Thousands of years before all this (evidence of man's greatness) when man was still dressed in animal skins, the writer of Genesis tells us man was made in the image of God (the all wise creator of heaven and earth). If that's not enough to knock your socks off - you aren't wearing any :=} I find this to be a staggering confirmation of the Bible's divine origin; confirmation it is what it claims to be.
Summary;
I'm afraid people are so used to hearing the phrase 'in the image of God' that they've lost sight of how staggering an idea (conception of reality) this is. Only the One who created man truly knows who he is, and what he's capable of.
Notes;
1. I agree with the scholars who claim Genesis was likely compiled by Moses (and or those associated with him) from ancient records that went back to the pre-Flood world, and all the way back to creation and Adam.
- e.g. all throughout Genesis, new passages are introduced by the phrase ''these are the records of..."
2. I'm aware that the 'liberal' (Humanist) scholar rejects the above view; but even given that, Genesis still stands as an amazing 'prediction' or understanding of man's intellectual capacity.