Arguing About Evil: Two Kinds of Argument
Part of the Arguing About Evil series.
The problem of evil, or argument from evil, comes in two conventionally recognized forms: logical problems of evil and evidential problems of evil.
Logical problems of evil aim to show that the presence of evil is logically inconsistent with the claim that there exists a being which is omnipotent, omniscient and perfectly good. In other words, logical problems of evil argue that if evil exists, then the claim that God exists cannot be true, and vice versa. If a logical argument from evil succeeds, then theism is false. Theists respond to logical problems of evil by showing that there exists a possible reason for the existence of evil, which would show that God’s non-existence is not necessitated by the presence of evil. An example of this is Plantinga’s famous free-will defense, which we’ll look at in one of the posts in this series.
The evidential problem of evil, on the other hand, aims to show not that God’s existence given the existence of evil is impossible, but that it is very unlikely. In this case, pointing out a possible reason for the existence of evil would not work. Theists typically respond by trying to show, “with at least a fair degree of probability, what God’s actual reason for permitting evil is.” (Everitt, p. 229) Examples of these attempts include the free-will theodicy (the claim that a world with free will and evil is better than a world with no evil and no free will) and the soul-making theodicy (the claim that evil serves what can loosely be called a character-building function). A successful evidential argument from evil would not show that theism is certainly false, but only that it is implausible or improbable.
Furthermore, both kinds of the argument from evil can rely on more than just the plain fact that evil exists. According to Everitt, “Some authors… distinguish between different versions of the logical problem, and also different versions of the evidential problem according to whether the focus is on the existence of evil per se, or on the huge total amount, or on the distribution, or on the awfulness of the worst evils, etc.” (Everitt, p. 228) One can also distinguish the kinds of evil that these arguments rely on into two kinds: natural and moral evils. Moral evil typically consists of evil brought about by human activity, such as torture and other forms of cruelty, or deceit, or acting solely for personal gain. Natural evils cover the broad spectrum of evils brought about by the normal operation of the laws of nature, such as disease and natural disasters.
Next post, we’ll look at an example of a logical problem of evil.