How our modern scientific worldview sprouted from Scripture. The government’s core mission. Why religion and politics need to stay in separate lanes. Why it’s crucial to know the world an author lived in before you dive into their work. How to actually read the Bible.

Social context.

The Treatise’s core goal is to split theology from politics and rein in religion’s sway over public life.

In 1665, Johan de Witt, an influential statesman who championed the interests of the merchant-industrial bourgeoisie, invited Spinoza to write a new text. Spinoza put aside work on his major book Ethics to take on the project. He spent the next five years writing and in 1670 the book was released anonymously.

Back then, the Netherlands had only recently won its freedom from Spain. Spirits were high and the government backed religious tolerance. That atmosphere pulled in plenty of thinkers, including René Descartes.

The Netherlands was a political battleground at the time. On one side, you had the merchant and industrial elite led by Johan de Witt. On the other, the Stadtholder faction driven by religious ideology and in charge of the military. And just to make things even messier, there was also a war going on with England. De Witt, worried the Stadtholders might gain too much power, kept military funding on a tight leash.

Johan de Witt had a clear goal when he commissioned Spinoza’s work – to weaken the power of the Stadtholders by dialing down religion’s grip on politics. Spinoza believed that letting religious doctrine guide the government wasn’t good for society as a whole. In his writing, he ran with that idea and laid out arguments that still shape how modern states are built today.

But in the end, Johan de Witt lost the political battle. He was brutally murdered, burned alive. As for the book, even though it was published anonymously, people quickly connected it to Spinoza and it was promptly banned.

God = Nature = Reason = Science

In the first part of his treatise, Spinoza challenges the idea of the Bible as a reliable source of knowledge. He argued that to truly understand Scripture, you need to know the context in which it was written: Jewish history, rhetoric, linguistics to grasp the real meaning behind the words and metaphors and natural science to tell the difference between actual miracles and natural phenomena.

The treatise was written to explore the relationship between democracy and religion and it marked the beginning of the Radical Enlightenment. Everything that came before it was more like enlightened conservatism.

Spinoza didn’t see nature as just matter, he also meant the laws of substance or God, the infinite being. In his view, God’s power is natural and inseparable from the workings of nature itself. That means nature’s power is both divine and infinite. And that’s where he draws a powerful connection: God = Nature = Reason = Science.

Human beings are part of nature. It’s important to distinguish between the general laws of nature and what’s unique to human nature. Spinoza points to one core human right – the right to preserve oneself. And for that purpose, he says, it’s fair to use whatever means are available.

To survive, people need each other. That’s why communities form, by coming together, they amplify their strength. Reason shows itself in our ability to build that collective power while still living in peace.

In the first part of the treatise, Spinoza argues that miracles don’t exist, what we call miracles are just the opinions of prophets. Religion and divine revelations have nothing to do with nature or truth. To Spinoza, the Bible is basically the core ideological text of the old regime.

Spinoza saw the Bible as a tool for keeping people in line, something made for the general public, who don’t have a strong sense of rational morality. It works by stirring up the imagination and emotions, using fear and promises to leave a strong impression and set the rules for the crowd.

How the rise of science was already written into Scripture

The Jewish state was a theocracy, where divine law and civil law matched. По Спинозе, божественный закон попадает в писания через откровения. Spinoza believed divine law entered Scripture through revelation and that God created the conditions that allowed the Jewish state to emerge. But here’s the interesting twist: in that same sense, any nation can be seen as “chosen,” just like the Jews, because the right conditions also came together for other nations to form.

In the Jewish state civil law turns into religious duty, making the entire nation function like a monastic order. Even everyday actions, like milking a cow, take on a religious meaning.

Spinoza believed that a theocratic state built on theology sees “others” as enemies of God, simply because they worship different gods. In his view, the Jewish state was the most unnatural form of government on earth. By relying so much on religion to hold it together, the state ends up weakening itself.

Theocracy is dangerous because it is closed for different opinions or new ideas.Different interpretations of sacred texts open the door to speculation and internal conflict, which often leads to civil war. To get past that kind of mess, Spinoza says we need science. It gives us a more stable and reliable way to build a society.

According to Spinoza, Scripture came into being as a natural part of Jewish history. The Jewish people were once enslaved by the Egyptians, an external force that controlled them. God might feel like “one of us,” but in a theocracy, he still ends up acting like a ruler. When religion runs the government, it creates a deep conflict inside society, a struggle between belief and freedom. Spinoza says the only way to fix that is through science and reason. That’s what helps humanity grow and become what it’s truly capable of.

To prevent conflict in theocratic states, Spinoza suggests separating religion from government and protecting freedom of speech. The only opinion he thinks should be limited is the calls to ban freedom of speech. The state should be a tool for freedom,built on laws, strengthened through unity and designed to let reason shine.

Conclusion: It’s kind of amazing to realize that science and almost all modern ways of thinking actually grew out of a religious worldview. I used to think science gave us an independent, “objective” picture of the world, something that let us see the true nature of things.

Selected Quotes

On Prophets

Here’s how I’ll wrap it up: prophecy never made prophets any more knowledgeable. They stuck to their own biased views. So when it comes to abstract or speculative stuff, we’re under no obligation to believe them.

But there’s nothing blasphemous in what we’re saying as Solomon, Isaiah, Jesus and the rest may have been prophets, but they were still human. And like any human, it’s fair to assume that nothing truly human was foreign to them.

So, all of this clearly shows what we set out to prove: that God shaped revelations to fit the understanding and personal views of the prophets. Which means prophets might not have known things related to pure reason or abstract thinking. They even disagreed with each other on those topics. That’s why it’s simply wrong to look to the prophets for knowledge about nature or the deeper workings of the spirit.

On the calling of the Jews and whether prophecy was unique to them

True happiness and fulfillment come from wisdom and understanding the truth, not from being wiser than others or from others lacking that truth. That kind of comparison doesn’t add even the slightest bit to a person’s actual wisdom, which is where real happiness lies.

By “God’s guidance” (Dei directio), I mean the fixed and unchanging order of nature, the natural chain (concatenatio) of cause and effect. As we’ve said before, the universal laws of nature that govern and determine everything are nothing other than God’s eternal decrees. These contain eternal truth and necessity. So whether we say that things happen according to the laws of nature or by God’s will and direction, we’re really saying the same thing.

Everything we truly want in life basically comes down to three things: understanding the world through its first causes, gaining control over our emotions or developing a habit of virtue and finally, living a calm, peaceful life in good physical health.

On divine law

So, since a law is nothing more than a way of life that people set for themselves or others in order to reach a certain goal, I think it makes sense to divide law into two kinds: human and divine. By human law, I mean a way of living that’s meant to keep the state running and preserve social order. Divine law, on the other hand, is about something higher, reaching true knowledge of God and learning to love Him.

The more we understand the natural world, the greater and more complete our knowledge of God becomes. The deeper we explore nature, the more fully we come to know God’s true essence.

So, we conclude that God is described as a lawmaker or ruler only because of how the masses think and because of the limits of human understanding. In reality, God acts and governs everything solely out of the necessity of His own nature and perfection.

Why religious rituals were created and why we believe in stories from the past
Laws in any country should be designed in a way that motivates people not through fear, but through hope for something good that they deeply desire. That way, people are more likely to do their part willingly.

So, if something ever happened in nature that went against its universal laws, it would also go against reason and against the very nature of God. Anyone claiming that God breaks the laws of nature is basically saying God goes against His own nature. And honestly, nothing could be more absurd.

I’ve already shown that Scripture doesn’t explain things by looking at their direct causes. Instead, it tells stories in a way that’s most likely to inspire reverence, especially among the masses. That’s why it often speaks about God and other matters in very vague or imprecise terms. Its goal isn’t to convince the mind, but to move and captivate the imagination.

On interpreting Scripture

Scripture doesn’t define the things it talks about, just like nature doesn’t either.

If you’re reading a book filled with strange or hard-to-understand ideas and you don’t know who wrote it, when it was written or why – it’s pretty much impossible to figure out what it really means. Without that context, there’s no way to know what the author intended or could’ve meant. But once you do know those things, your thinking gets a lot clearer. You’re less likely to project your own assumptions onto the text and more likely to focus on what the author actually meant, what they were trying to say based on their time, their situation and their audience.

I honestly can’t get over how some people see such deep, hidden mysteries in Scripture that, supposedly, no human language could ever explain them. And then they go and stuff religion with so much philosophy that the church ends up looking more like a university lecture hall and faith starts to feel more like a science or worse, just endless debate.

Here’s the thing: if someone lives a good life, then even if they don’t agree with others on doctrine, they’re still a true believer. But if their actions are bad, then no matter how much they say the right things, they’re not really a believer at all.

Faith by itself, if it is not accompanied by action, is dead.

Like we said, reason belongs to the realm of truth and wisdom, while theology belongs to the realm of devotion and obedience.

Those who run the state always try to make even their shady actions look legit. They want the public to believe they acted fairly. And it’s pretty easy for them to pull that off when they control how the law is interpreted.

Back then, even just moving your homeland was seen as shameful, because worshiping God, which they were always obligated to do, was only allowed in their own land. That land alone was considered holy, any other place was seen as unclean and defiled.