Why did Nietzsche believe that the death of God would lead to a time of chaos?

Apologies if this thread has already been posted, I feel like I've read it before but can't find it anywhere. In his work *Thus Spoke Zarathustra*, Nietzsche wrote that "God is dead. God remains dead. And we have killed him...". The God he is talking about here is of course not a physical deity, but a general source of moral values for the general public. He believed that the Enlightenment, by bringing critical scrutiny to traditional authority and questioning the sources of moral values, has undermined the traditional values people have used to construct a sense of meaning since the start of time. <br><br>This idea has been echoed throughout the history of human civilization. Many people have warned that if religion died, people would stop behaving. The 18th-century French philosopher Alexis de Tocqueville wrote, "If faith does not light the way, the people of a Christian land may resort to reason. The reason, however, may only lead them astray." In *The Brothers Karamazov*, Russian writer Fyodor Dostoevsky (1821-1881) famously wrote, "Without God and the future life? It means everything is permitted now." It's true that religion has played a massive part in creating restrictions on people's behavior, but I believe that to say that religion or a universal source of values is the **only** thing stopping people from going wild and starting anarchy is ridiculous. In my mind, it's just another form of the old "nature vs nurture" debate. If you were raised in an environment where chaos and violence are the norm, then that's what you're going to resort to, but for people that have grown up in a more calmer environment, what really stops them from going out and commiting moral crimes? In my opinion, it's not the universal source of values that religion provides, it's how people are nurtured and what they grow up seeing as the norm.