"if your proof is the bible, that was written by man, not god."
That is a component of proof, most certainly. The Bible cannot be explained away by saying it was written by men, given what we know about the nature of mankind. So immediately we delve into the realm of psychology and human behavior.
But we can also look to science and all that we now know that was not known in the past, where, for instance, the flawed and essentially disproved theory of evolution was concocted to try and explain what we see. We now know enough about what we are made of to assert that there is no possible way that we got here by accident.
- There is no *missing link* to show how ANY species developed from one into a totally different one, including the alleged link between mankind and apes.
- Before you can even entertain macro-evolution, you need to explain origin of life, something that they have no clue about. There is speculation aplenty, but it is all essentially make-believe and pure imagination.
- There are way too many things we see in the universe that defy the current, yet ever changing, explanations and assumptions of the age of the universe, things which cannot exist if the universe were as old as they want it to be.
I say, "as old as they want it to be", because they need it to be that old to make sense of their naturalistic narrative.
The Bible explains human nature quite well, and this long before the "science" of psychology was refined into what it is today. Some of what it tells us is that the heart of mankind is continuously rebelling against God, and His commands.
Why is this? If we are a product of time and chance working on non-living chemicals, then why do we care about anything we do? But why not just embrace the whole concept of, (as liberals often put it) do what God says and be happy?
Better yet, why did a belief in God arise at all? It is ironic at this point that human nature is often used to try and explain away human nature. But if God did not exist, what would prompt anyone to dream that concept up? People that think such a thing is possible are doing so from already being at a point of having all sorts of information about God and religions all around them, but they fail to extrapolate backwards to a time when they would allege that no such belief existed at all. To believe that just because ancient man could not explain some natural phenomena meant that he or she would come up with the concept of God, or gods, is irrational.