The Cosmological Argument for the existence of God goes something like this...
1. Everything that had a beginning, had a beginner (or Causer).
2. The universe had a beginning (it's not eternal).
3. Therefore, the universe had a Beginner (or Causer).
If the first two points are true, the third point is automatically true.
Everything That Had a Beginning Had a Beginner
One of the most basic laws of science is known as the law of causality. This law says, essentially, "Anything that had a
beginning was caused by something outside of it's self."
Another way to say this is that if something had a beginning, then Someone/Something had to bring it it existence. If we can show that the universe had a beginning, then the law of causality will demand that a Beginner of some kind created or caused it.
This principle is so foundational that one of history's most famous skeptics, David Hume, said, "I never asserted so absurd a proposition as that anything might arise without a cause.
The following all demonstrate how this law operates: Animals, insects, trees, plants, chairs, books, ships, and jet airplanes all had a beginning; they all have a cause. Vehicles are caused by a variety of people who plan, design, produce, and assemble them.
Computers are caused by people who design hardware and write software.
Buildings are caused by architects, contractors, carpenters, and many others.
It's not difficult to come up with a very long list of things that had a beginning and therefore subject to the law of causality that requires a beginner/causer for each.
Think about the song from The Sound of Music that tells us nothing can come from nothing. Why can't something come from nothing?
Because nothing is just that-it's nothing!
Something or Someone, must begin or cause everything that comes into being.
The Universe had a Beginning (it's not eternal)
Next we must ask ourselves if the universe had a beginning. Was there a beginning to stars, planets, galaxies, time, space, matter, energy, and life itself? Or does atheism correctly maintain that the universe is eternal? Two pieces of evidence help to show that the universe had a beginning and therefore is not eternal-Someone or Something had to cause or "begin" it.
The Second Law of Thermodynamics
The second law of thermodynamics says that the universe is running out of usable energy.
This principle is relatively simple to understand.
Think of iPods, which are made (or begun, or created) by designers and assemblers. If you buy a new one, naturally you'll want to use it right away.
But an iPod won't operate without a charged battery, so you must plug it in for a few hours first. Then you turn it on, and presto! It works.
As you listen to music (or view movies or photos), the iPod's battery gradually loses it's charge and increasingly runs down. at some point, without a recharge, it will stop working, having "run out of usable energy."
Here's the point: The iPod, it's battery and energy, had a beginning. And from the time you first use it, the energy stored in it starts to deplete. It's available energy will eventually run out. This means there was a limited amount of energy in your iPod battery from the beginning. The universe in which we live is very similar (though it has no docking station or USB connector). That it's usable energy is running down means it had a beginning. It's not eternal-if it were, then it would have unlimited, inexhaustible energy that would never run out or end, because eternity never runs out or ends. Like an iPod, the universe had to have a beginning.
The Universe is Expanding (If it were reversed, the universe would collapse back to nothing).
Continued....