Jean Paul Sartre belief in God?

How does Sartre connect belief in god with the belief that there is a fixed human nature?|||Like Husserl and Heidegger, Sartre distinguished ontology from metaphysics and favored the former. In his case, ontology is primarily descriptive and classificatory, whereas metaphysics purports to be causally explanatory, offering accounts about the ultimate origins and ends of individuals and of the universe as a whole. Unlike Heidegger, however, Sartre does not try to combat metaphysics as a deleterious undertaking. He simply notes in a Kantian manner that it raises questions we cannot answer. On the other hand, he subtitles Being and Nothingness a “Phenomenological Ontology.” Its descriptive method moves from the most abstract to the highly concrete. It begins by analyzing two distinct and irreducible categories or kinds of being: the in-itself (en-soi) and the for-itself (pour-soi), roughly the nonconscious and consciousness respectively, adding a third, the for-others (pour-autrui), later in the book, and concludes with a sketch of the practice of “existential psychoanalysis” that interprets our actions to uncover the fundamental project that unifies our lives.