All ten of the theologians reviewed gave mention to the cosmological argument. This argument has its roots in Plato and Aristotle and was developed by medieval Islamic, Jewish, and Christian thinkers.[1] The cosmological argument has been defended by many great minds and reads like a Who’s Who of western philosophy and theology: Plato, Aristotle, ibn Sina, al-Ghazali, ibn Rushd, Maimonides, Anselm, Aquinas, Scotus, Descartes, Spinoza, Berkeley, Locke, and Leibniz to name but some.[1],[2] Most recently, this argument has come into favor during the last century as modern cosmologists have increasingly become aware of the unique attributes of the primitive universe. This argument is generally the first one discussed and provides a convincing formalism. Generally, this argument can be formulated into three categories. The kalam cosmological argument for a First Cause of the beginning of the universe, the Thomist cosmological argument for a sustaining Ground of Being of the world, and the Leibnizian cosmological argument for a Sufficient Reason why something exists rather than nothing.[2] In the first of three posts, we will deal with the kalam formulation of the argument.
The kalam cosmological argument is usually given in the following syllogism:
(1) Whatever beings to exist has a cause
(2) The universe began to exist
(3) Therefore, the universe has a cause
Given (1) and (2), (3) logically, necessarily, and inescapably follows. Hence if this argument is to be falsified then premise (1) or (2) must be denied. That is, one of the following must be demonstrated:
~(1) Whatever begins to exist does not have a cause (i.e. that something has begun to exist without a cause)
~(2) The universe did not begin to exist
This argument attempts to demonstrate that the universe began to exist on the basis of philosophical arguments against the existence of an infinite, temporal regress of past events. For scientific evidence for the world having a beginning just look at the so-called “Big Bang Theory” held by most contemporary astronomers.3 Actually this syllogism can be expanded to give defense of premise two as follows[4]:
1. Whatever begins to exist has a cause of its existence.
2. The universe began to exist.
2.1 Argument based on the impossibility of an actual infinite.
2.11 An actual infinite cannot exist.
2.12 An infinite temporal regress of events is an actual infinite.
2.13 Therefore, an infinite temporal regress of events cannot exist.
2.2 Argument based on the impossibility of the formation of an actual infinite by successive addition.
2.21 A collection formed by successive addition cannot be actually infinite.
2.22 The temporal series of past events is a collection formed by successive addition.
2.23 Therefore, the temporal series of past events cannot be actually infinite.
3. Therefore, the universe has a cause of its existence.
Each of these are argued out by Craig elsewhere.[4],[5] Much support for these is also seen is a simple thought experiment known as Hilbert’s Hotel.
David Hilbert was a German mathematician who was very influential on modern science, math, and philosophy. Hilbert’s Hotel was a thought experiment demonstrating the absurdity of the existence of an actual infinite. Essentially, if one were to imagine a hotel with an actually infinite number of rooms and each and every room is occupied by a guest. If a new guest were to show up and ask the manager for a room, since the number of rooms is infinite, the manager need simply move guest 1 in room 1 to room 2 and guest 2 in room 2 to room 3…ad infinitum. Now, the obvious problem is that the hotel was totally occupied and full prior to the arrival of our new guest and yet somehow there is still room. This is simply absurd. Hilbert’s hotel get’s even more weird when we consider guests checking out of the hotel. Suppose that the following morning all the guests in all the odd numbered rooms decide to check out. The manager checks them out and yet somehow, there is no change in the actual number of guests checked in at the hotel even though an infinite number have left. For that matter, despite the fact that an infinite number have checked out, the hotel is still fully occupied and there are no rooms available for any new guests to check in to. Yet, if a new guest arrived that afternoon the manager could, once again, simply move guest 1 in room 1 to room 2, etc… as before and check in a new guest. It is easy to see how absurd the concept of an actual infinite really is.
What must be understood here, is that these are thought experiments, they are essentially games played by philosophers and mathematicians. They simply have no reference point in reality and that is just the point. No one could ever build Hilbert’s Hotel. As one continued to build rooms, the rooms would always be the previous number plus one and we would never reach a point where an infinite number of rooms even existed with which to actually play the game as described by Hilbert. Just as Hilbert’s Hotel could never ACTUALLY exist, we could never find an ACTUALLY infinite set of anything, including temporal events. If that is true (and Hilbert’s hotel seems to clearly demonstrate that it is indeed true) then time itself must not be actually infinite, the universe itself must not be actually infinite, the series of past events and future events must not be actually infinite, in short, nothing truly existing is actually infinite…there is a beginning somewhere. This raises a question about God. Isn’t god infinite? Indeed, God can be described as infininte. So then, an actual infinite exists. NO! How do we reason this out? When we describe God as infinite we are describing him qualitatively not quantitatively. I’m not even sure it makes sense to think of God as quantitatively infinite.
So let’s assume there is a First Cause. Even David Hume confessed, “I never asserted so absurd a proposition as that anything might arise without a cause.”[6] How do we know that the “Cause” is God? From the very nature of the case, this cause must be an uncaused, changeless, timeless, and immaterial being which created the universe. It must be uncaused because we’ve seen that there cannot be an infinite regress of causes. It must be timeless and therefore changeless because it created time. Because it also created space, it must transcend space as well and therefore be immaterial, not physical.[7]
Essentially any properties that exist in the effect, the cause must transcend or possess itself. Consider the existence of an army of robots created by some mad scientist. The mad scientist transcends the robots in that they cannot accomplish anything, feel anything, etc…that the scientist does not program into them. The scientist cannot program something into the robots that He is not aware of. He cannot program the robots to feel joy if he does not know what joy is. He must either possess the capacity for joy in order to program it in. He cannot program the robots to exist in time and space unless he either exists in time and space or transcends time and space. If he only exists in time and not in space, then he cannot create the robots in space. In a similar fashion, we can know that anything we see in the effect (the world) must be transcended by God or be possessed by Him. However, given that some properties are unique to this particular effect, namely the beginning of time and material, we know that these properties must be transcended by their cause. Furthermore, we know that whatever cause there is for personality, morality, or spirituality must possess these characteristics since an amoral, impersonal, and non-spiritual cause cannot produce a moral, personal, and spiritual effect. As Craig writes, “…there exists a Personal Creator of the universe, who, sans the universe, is timeless, spaceless, beginningless, changeless, necessary, uncaused, and enormously powerful. And this, as Thomas Aquinas laconically remarked is what everybody means by God.”[8]
This argument seems to make sense, but aren’t we outside the realm of theology here? We are not. This is the branch of theology known as natural theology. It is not incorrect to use other disciplines to analyze arguments and provide insight. Any thinking person does this everyday. Plus, the premise we are arguing from (namely, that God exists) is firmly rooted in the Scriptures. Thus we are well within the confines of theology discussing the issue even when we use philosophical arguments or scientific evidences to support our theological conclusions.
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(1) Craig, W. L. Reasonable Faith: Christian Truth and Apologetics; 3 ed.; Crossway: Wheaton, IL, 2008.
(2) Moreland, J. P.; Craig, W. L. Philosophical Foundations for a Christian Worldview; InterVarsity Press: Downers Grove, IL, 2003.
(3) Geisler, N. L. Systematic Theology Volume One: Introduction and Bible; Bethany House Publishers: Bloomington, 2002; Vol. 1.
(4) Craig, W. L. Truth: A Journal of Modern Thought 1991, 3, 85-96.
(5) Craig, W. L. Canadian Journal of Philosophy 2006, 36, 565-584.
(6) Hume, D. The Letters of David Hume; Oxford: Clarendon, 1932; Vol. 1.
(7) Craig, W. L. In Why I am a Christian: Leading Thinkers Explain Why They Believe
Geisler, N. L., Hoffman, P. K., Eds.; Baker Books: Grand Rapids, MI, 2006, p 67-86.
(8) Craig, W.L. The Ultimate Question of Origins: God and the Beginning of the Universe In Astrophysics and Space Science 1999, p 723 – 740
