Under the idea of ethics, we discuss what a properly functioning human being is and requires. Under the idea of morality, we discuss what a rational functioning society is and requires. A rational functioning society can continue to exist only when the individuals of whom it consists are happy. Otherwise, there will be tribal warfare, and the society will collapse as its individuals are killed off.
We note that the smallest society consists of two persons. If we were to discuss two people living together on a deserted island, we would be able to discuss what a rational functioning society is and that upon which its happy existence depends. And in doing so, we would discover the answer to one of the greatest questions facing man.
What is personal salvation, and upon what does it depend?
Note: Personal salvation is not achieved in isolation. When one understands one is worthy of personal salvation, one’s thoughts and thereby one’s actions will be fundamentally altered.
An ethical person, a person selfishly motivated by personal salvation, will seek another person similarly motivated by personal salvation. When successful, the living-existence of each is saved. Their personal salvation is provided to them by their God, by their mutually agreed-to godly interaction. God is their savior. Notice how their godly interaction is something they are responsible for and not the other way around.
Note that they each become both their own personal savior and the savior of their chosen sexual partner. In other words, they are responsible for the existence of their God. It is their godly behavior that is responsible for their salvation. Further, it is God that is responsible for the salvation of the human species.
Selfishly motivated human happiness is why God exists.