Unless there is a God, all morality is just opinion and belief. And virtually every atheist philosopher has acknowledged this.

Belief in God means more than believing God exists; it also means believing God cares about us. After all, if God exists but doesn’t care about us, what difference does it make to us whether God exists? For all intents and purposes, there is no difference between atheism and the existence of a God who doesn’t care about us.

Blessed are You God, ruler of the world, Who created man in wisdom and created within him numerous orifices and spaces. It is known and revealed before You that if one of them should open when it should close or one of them should close when it should open, it would be impossible for us to exist. Blessed are You God, Who heals all mankind and does wonders.

Without God, right and wrong are just personal beliefs. Personal opinions. I think shoplifting is okay, you don’t.

Sigmund Freud, the father of psychiatry and an atheist, theorized that one’s attitude toward one’s father largely shaped one’s attitude toward God.

God made nature, and is therefore not natural. This led to the end of the universal human belief in nature gods (such as rain gods). And sure enough, as belief in the Torah’s God declines, nature worship seems to be returning.