Continuing in the study of arguments for God’s existence, let’s today turn our attention to the Teleological argument for God’s existence, otherwise known as the Design argument. It works likeskywriting this: a design requires a designer, and as the universe gives good evidence of design, we are well-justified in believing in a grand Designer. Here’s the formal argument:

  1. Every design had a designer.
  2. The universe has a highly complex design.
  3. Therefore, the universe had a designer.

1. Every design had a designer

This is an intuitively known fact that can be shown true without a whole lot of introspection, but since this notion comes under attack, let’s consider a couple of scenarios to flesh it out.

Paley’s Watchmaker

William Paley, a natural philosopher of the 18th century, underscored our intuition of design by imagining that within a forest a person discovers to the side of the path a pocket watch. Now, a pocket watch is a complex mechanism, with carefully calibrated and assembled gears, springs, and other precise components, working together to perform a function: accurate timekeeping. If one were to find such a device, even if they had never before seen or knew about watches, it seems clear that no one would conclude or even for very long consider the possibility that it assembled through natural processes over time. No, the immediate inference would be that of an intelligent agent having designed the pocket watch.


We’ve probably all seen it at some point – fuzzy white letters in a blue sky saying “Marry Me” or “Eat at Joe’s” or “How Do I Land?” What are our intuitions when we look up and see these words? Coincidence of clouds and water vapors and wind? No, not even a simple “I ♡ U” would be mistaken as the product of natural forces and random chance. Information is conveyed, and our uniform and repeated experience is that information originates from a mind.

2. The universe has a highly complex design.

The “Anthropic Principle” is the term used to categorize the ever-increasing evidence that the universe was designed to permit and support life on earth. This is quite a claim, isn’t it? But it is the best explanation of the evidence of the cosmological constants, seemingly tweaked to make life on earth possible. Here are just a few of those:

  1. Earth’s oxygen level – 21%; 25% would cause spontaneous combustion; 15% would cause human suffocation
  2. Earth’s atmospheric transparency – blocks right amount of solar radiation
  3. Moon-Earth gravitation interaction – greater interaction would mean tidal effects on oceans, atmosphere, and rotational period would be too severe. Less interaction would cause climactic instabilities.
  4. Carbon Dioxide levels – more would cause uninhabitable greenhouse effect; less would prevent photosynthesis and cause suffocation.
  5. Gravity effects – if any different by an infinitesimal amount, stars and planets would never have formed.

There are over one hundred of these constants, precisely and mind-bogglingly set so that man can thrive. Put all together, the odds are truly staggering that such a universe could have arrived by chance. For a more in-depth look at the anthropic principle, additional cosmological constants, and more numbers on the vanishingly small odds of these constants lining up randomly, please see this excellent article on the anthropic principle here. The author describes a very lucky Powerball winner, and then makes this great observation: “If someone won even two such lotteries consecutively, we would all assume the results were rigged. And yet, when it comes to life existing in our universe, the odds are far more remote than winning a hundred Powerball lotteries consecutively.” Our universe certainly seems to have been rigged.

3. Therefore, the universe had a designer.

As with the cosmological argument, I want to remain modest about the results of this argument. It doesn’t prove the Judeo-Christian God. It does, however, demonstrate that a super-intellect and super-power “set the dials” of the constants and designed the arrangement of the universe to be the way it we see it.

As with the Kalam argument, Reasonable Faith has made a great animated short film summarizing and explaining this argument. Check it out:


Next time, I’ll spend a little time on design objections. Please join me!

Comments, questions, challenges? Email me through the form on my “about” page, we’ll discuss, and your comments may inspire a follow-up post!