God exists simply because of faith, and in early times the founders of most religions where most likely in some way shape or form a philosopher.
Now also in those times, the only way to make something was by human means, so my theory is that they thought of an all powerful being modeling a human that created the world and everyone on it when they themselves wondered where they came from and how they were put there. Also there is no way to be certain that all the stories that are told in the Bible are true, some possible but there are many many many stories that seem unlikely ei: Noah living beyond 400 years of age, Moses parting the Red Sea, Sodom and Gomorrah being destroyed by fire and brimstone from Heaven, and Lucifer falling from Heaven for betraying God only later to spoil God’s perfect creation. Also there are a few things that bible says but are scientifically false, such as men having one less rib the women. To stop rambling and get to the point I would say that God exists with people who believe that he does.
If you want to get technical, then we could incorporate quantum mechanics (even though you really shouldn’t), you not able to prove that he does or doesn’t exist which in turn would give the answer that he does and doesn’t exist at the same time until more information is given.
@the people who are sure there is no God I would like to see you back up your answers, keep in mind I do not follow a faith with a god, but one that has certain values to include in life to promote happiness.
I’ll get back to you all tomorrow I’m tired.