The Principle of Causality: Defending God's Existence

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The principle of causality is one that was used in a formidable way throughout the history of Western theoretical thought to argue for the existence of God by reasoning from the appearance of this world back to an adequate or sufficient cause that would explain this world or this universe. [00:02:00]

Mill said it this way, "If everything requires a cause, then manifestly, God would require a cause. And whoever caused God would require a cause, so that you can't reason back to God on the basis of the principle that everything must have a cause." [00:04:08]

The primary error was an error in definition. He assumed that the definition of the law of causality is simply, "everything must have a cause." Now, if that indeed were the classical law of causality, then his criticism of causal reasoning back to a first cause would be valid. [00:05:21]

The law of causality has never said that everything has to have a cause. Rather, the law of causality, stated properly, says, "Every effect must have an antecedent cause." Every effect must have an antecedent cause. [00:08:36]

If we could find something that is not an effect -- that is something that has the power of being within itself, and is from eternity -- obviously, that being would not be an effect. And when we define the character of God, we say that God is a self-existing, eternal being who is independent, underived, not contingent, but He's eternal. [00:09:54]

If you analyze this statement, "Every effect must have a cause," just by analyzing the words and their relationship in the statement, you will see that the statement not only is true, but by definition has to be true. [00:11:38]

An effect, by definition, is something that has been caused by something else. Now what is a cause? What is a cause? What does a cause do? It brings some kind of result, and what do we call that result? An effect, that's right. [00:14:10]

You can't have a cause that doesn't cause anything. What a cause causes is an effect. So you can't have a cause without an effect, and anything that is identified as an effect, by definition, must have a cause. [00:14:36]

If any or all of those things that I've just listed -- trucks and trees and cars and all of that -- are effects, then we know for sure that they have what? Causes. Now maybe they are not effects, but the principle is, the logical principle is, if something is an effect, it must have what? It must have a cause. [00:18:10]

The problem with Sproul and his book is that Sproul will not allow for an uncaused effect. That was his criticism. Now my basic rule of thumb is, is that if I ever see one of my books criticized in a review, I never bother to get engaged in a debate or discussion with the reviewer. [00:19:30]

I would be happy to allow for an uncaused effect if you would take the trouble to write to me one example, anywhere in the universe, of an uncaused effect. And of course, I'm still waiting for his response because I know, and he knows upon a moment's reflection, that you can't possibly have an uncaused effect because an effect, by definition, is something that has an antecedent cause. [00:20:27]

Denials of the law of causality are frequently found in those who argue against classical theism, who want to avoid the enormous power of causal thought that drives people to give a sufficient cause for effects that we recognize to be effects. [00:22:25]

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