Why cant God just forgive us?

Me right now I am capable of forgiving my worst enemy. I am capable of doing this without requiring a human sacrifice, specifically that my worst enemy believe in my human sacrifice in order for him to be forgiven. Why cant God do this?

Currently I do not believe in the bible or Jesus of the bible. According to John 3:16-18 I stand condemned for my unbelief. My message to any creator would be dont torture or torment me in the afterlife, please forgive me if I offended you. Why cant God just forgive me without requiring my belief, and if belief is absolutely needed why cant he demonstrate that belief?