The absence of any positive evidence or any circumstantial evidence of any entity having the nature or alleged abilities of a creative intelligent deity abolishes the idea that God is anything more than a human idea. The theme of the excellent book ‘Soul Fallacy‘ Longish excerpts can be read by clicking here and then on ‘Look Inside’. No entity we can call a self or a permanent ‘ego’– other than as a post facto mental construct – can be perceived inwardly as such (Sartre proved this though rigorous phenomenological analysis in his difficult but rewarding ‘The Transcendence of the Ego’). Julian Baggini has since then explicated many grounds for denial any kind of timeless or ontologically self-supporting self, which has important consequences for philosophy, psychology and religion.
See also:- The Ego in psychology and philosophy and The Confused and Systematically Ambiguous Doctrine of Ego vs. Egolessness