There are believers in God or any other higher being and there are atheists. However, there’s also the middle person, the agnostic. Doesn’t really know what to believe or just doesn’t doubt that God exists nor believes God does. In other words, the Agnostic is unsure of what to believe. In other words, the Agnostic knows that no one can know if God exists or not.
“Do you believe that chocolate exists?”
“No one can know if chocolate exists. It may, it may not.”