The Problem of Evil: Why Suffering Breaks the God of the Philosophers

The problem of evil is the oldest and most powerful argument against the existence of a classical theistic God. It does not require specialist knowledge of theology or science. It requires only the observation of the world as it actually is, and the application of elementary logic. The Greek philosopher Epicurus formulated the core argument some 2,300 years ago, and it has never been satisfactorily answered.

The Argument

In its classical form, the problem of evil runs as follows:

If God exists, then God is omnipotent (all-powerful), omniscient (all-knowing), and omnibenevolent (perfectly good).
If God is omnipotent, God can prevent evil and suffering.
If God is omniscient, God knows about all evil and suffering.
If God is omnibenevolent, God would want to prevent all unnecessary evil and suffering.
Evil and unnecessary suffering exist.
Therefore, a God who is omnipotent, omniscient, and omnibenevolent does not exist.

The argument is deductively valid: if the premises are true, the conclusion follows necessarily. The debate, therefore, centers on whether the premises can be challenged.

The Theodicies: Attempted Defenses

Theologians and philosophers have proposed many defenses — "theodicies" — for why a good God might permit evil. Let's examine the main ones.

1. The Free Will Defense

The most popular theodicy holds that God gave humans free will, and free will requires the genuine possibility of doing evil. A world with free, morally responsible agents is more valuable than a world of puppets who always do good.

Problems:

Natural evil is unexplained. Free will accounts for moral evil (murder, war, genocide). It explains nothing about natural evil: childhood cancer, earthquakes, tsunamis, the Black Death. These are not caused by human choices. Why would an omnipotent God allow a child to die of leukemia to preserve human free will?
The defense assumes a false dichotomy. God is supposed to be omnipotent. Could God not create beings with genuine free will who also, by their nature, happen not to choose devastating evil? Heaven is typically described as a place where free will exists but no one sins. If that's possible in heaven, why wasn't it possible here?
God violates free will constantly — in religious accounts. God hardens Pharaoh's heart (Exodus 4:21), sends visions, converts Paul on the road to Damascus, answers prayers, performs miracles. If God can intervene without destroying free will in these cases, why not stop the Holocaust?

2. The Soul-Making Theodicy (Irenaeus / John Hick)

This theodicy argues that suffering is necessary for moral and spiritual development. Virtues like courage, compassion, and perseverance require the existence of hardship to develop. A world without suffering would produce shallow, undeveloped souls.

Problems:

The scale of suffering is wildly disproportionate. You don't need the Holocaust to teach compassion. You don't need a child to die of meningitis to build character. The sheer quantity and intensity of suffering in the world vastly exceeds any plausible educational requirement.
Many people are broken by suffering, not ennobled by it. Trauma produces PTSD, addiction, and suicidal despair as often as it produces saints. The empirical evidence for suffering as a reliable soul-making mechanism is weak.
Animals suffer constantly and have no souls to make. What spiritual development occurs when a gazelle is disemboweled alive? What purpose is served by the parasites that evolved specifically to bore through the eyes of children?

3. The Greater Good Defense

God permits evil because it contributes to some greater good that we cannot comprehend from our limited perspective.

Problems:

This is unfalsifiable. Any conceivable evil can be explained by appealing to an incomprehensible greater good. A defense that explains everything explains nothing.
It makes God a moral monster by ordinary standards. A doctor who infects children with a disease because it will lead to a vaccine that saves more lives in the future is not admirable — they are a criminal. Why does God get a moral exemption that no human being would receive?
It collapses omnipotence. An omnipotent being is not constrained to achieve good ends through evil means. "I had to allow the Holocaust to bring about a greater good" implies a limitation on God's power that is incompatible with classical theism.

4. The Skeptical Theist Response

A sophisticated modern response (Alston, Wykstra, Plantinga) holds that we simply cannot know whether God has sufficient reasons for permitting evil, because our cognitive capacities are too limited to grasp the full picture.

Problems:

This is an admission of defeat, not a theodicy. It doesn't explain why God permits evil; it explains why we should stop expecting an explanation. It replaces theodicy with intellectual surrender.
It cuts both ways. If our cognitive capacities are too limited to assess God's reasons for permitting evil, they are equally too limited to assess claims that God is good in the first place.
It proves too much. By the same logic, we cannot assess the moral character of any agent whose full reasoning we cannot perceive. This would make moral evaluation impossible and render all ethical reasoning about God incoherent.

The Evidential Form

Even if the logical problem of evil doesn't disprove God's existence, the evidential problem still carries enormous weight. The question is not: "Is it logically possible that God has reasons for permitting evil?" but rather: "Given the actual distribution and character of suffering in the world, is the existence of an omnipotent, omniscient, omnibenevolent God probable?"

Consider:

Children born with Tay-Sachs disease, who suffer horribly for two to four years before dying.
The 250 million years of predation before any hominid existed — suffering on an unimaginable scale with no human moral development at stake.
The Lisbon earthquake of 1755, which killed 50,000 people, many of them inside churches on All Saints' Day.
The botfly larvae that grow inside the bodies of living mammals.

The probability that a perfectly good, all-powerful God designed this world as the optimal vehicle for human flourishing is extraordinarily low. The probability that this world is the product of indifferent natural processes is far higher.

The God That Survives

Confronted with the problem of evil, theologians often quietly shrink God: God is not omnipotent, only very powerful. God is not intervening in history, only sustaining the laws of physics. God "suffers with us" rather than preventing suffering.

These retreats may produce a philosophically defensible position, but they produce a very different God from the one actually worshipped in synagogues, churches, and mosques — a God who parts seas, raises the dead, answers prayers, and has a plan for each individual life. You cannot solve the problem of evil by abandoning the God who actually caused the problem.

Conclusion

The problem of evil is not a clever philosophical trick. It is an observation about reality: the world looks exactly like a world without a benevolent designer. The suffering of the innocent — especially the very young, the very old, and the non-human animals who have no theological role in any story — is not compatible with the God described in the Abrahamic traditions.

Every theodicy either explains too little, proves too much, or quietly concedes the most important attributes of the God it is trying to defend. The problem of evil has been debated for two millennia. The silence from the other side of the argument remains deafening.