The Logical Problem of Evil
We have noted that there are two aspects of the problem of evil: the philosophical or apologetic, and the religious or emotional aspect. We also noted that within the philosophical aspect there are two types of challenges to faith in God: the logical and the evidential.
David Hume, the eighteenth century philosopher, stated the logical problem of evil when he inquired about God, "Is He willing to prevent evil, but not able? Then He is impotent. Is He able, but not willing? Then He is malevolent. Is He both able and willing? Whence then is evil?" (Craig, 80). When the skeptic challenges belief in God on the basis of the logical problem of evil, he is suggesting that it is irrational or logically impossible to believe in the existence of both a good and all powerful God and in the reality of evil and suffering.
Such a God would not possibly allow evil to exist.
The key to the resolution of this apparent conflict is to recognize that when we say God is all powerful, we do not imply that He is capable of doing anything imaginable. True, Scripture states that "with God all things are possible" (Mt. 19:26). But Scripture also states that there are some things God cannot do. For instance, God cannot lie (Tit. 1:2). Neither can He be tempted to sin, nor can He tempt others to sin (James 1:13). In other words, He cannot do anything that is "out of character" for a righteous God. Neither can He do anything that is out of character for a rational being in a rational world. Certainly even God cannot "undo the past," or create a square triangle, or make what is false true. He cannot do what is irrational or absurd.