What is the cosmological argument? Are there different forms of it? I don't get it.
(1) Everything that exists has a cause of its existence.
(2) The universe exists.
Therefore:
(3) The universe has a cause of its existence.
(4) If the universe has a cause of its existence, then that cause is God.
Therefore:
(5) God exists.
This is a strong argument. However, one of its major weaknesses is that if all things need a cause to exist, then God Himself must also, by definition, need a cause to exist. There is a major short-coming in this argument.
If, on the one hand, God is thought to have a cause of his existence, then positing the existence of God in order to explain the existence of the universe does not get us anywhere. Without God there is one entity the existence of which we cannot explain, namely the universe; with God there is one entity the existence of which we cannot explain, namely God. Positing the existence of God, then, raises as many problems as it solves, and so the cosmological argument leaves us in no better position than it found us, with one entity the existence of which we cannot explain.Two related arguments that help in overcoming some of these difficulties are the Kalam cosmological argument and the argument from contingency. Although William Lane Craig has made great strides in the Kalam argument, both of these arguments still have problems.If, on the other hand, God is thought not to have a cause of his existence, i.e. if God is thought to be an uncaused being, then this too raises difficulties for the simple cosmological argument. For if God were an uncaused being then his existence would be a counterexample to premise (1), "Everything that exists has a cause of its existence." If God exists but does not have a cause of his existence then premise (1) is false, in which case the simple cosmological argument is unsound. If premise (1) is false, i.e. if some things that exist do not have a cause, then the cosmological argument can be resisted on the ground that the universe itself might be such a thing. If God is claimed to exist uncaused, then, then the simple cosmological argument fails.
- Tim Holt (PhilosophyofReligioninfo.com)
Dr. Joseph R. Nally, Jr., D.D., M.Div. is the Theological Editor at Third Millennium Ministries (Thirdmill).