Debate Training Center

God & Reason · Advanced

The Existence of God and the Problem of Evil

Objection

If God is all-powerful and all-good, why does he allow immense suffering — children dying of cancer, genocides, natural disasters? Either God cannot stop evil (not all-powerful) or will not (not all-good), so the God of classical theism does not exist.

The Catholic response

The classical Catholic answer, developed by Augustine and Aquinas, begins by noting evil is not a positive substance God creates but a privation — an absence of a good that should be present, like blindness is the absence of sight in an eye. God, who is perfect goodness, permits evil only because he can draw a greater good from it, most supremely displayed in the Cross, where the greatest apparent evil in history — the murder of the innocent Son of God — became the very means of the world's redemption (Genesis 50:20, Romans 8:28). Much suffering flows from the genuine free will God gave rational creatures, a gift necessary for real love, since love that is coerced is not love; God permits the abuse of that freedom rather than reducing humans to puppets, while still working within human history toward final justice and restoration (Revelation 21:4). As for suffering not caused by human choice, the Book of Job confronts this directly: God does not give Job a tidy philosophical answer but reveals his own transcendence and wisdom, inviting trust rather than a full accounting. Philosophically, the mere existence of evil actually presupposes an objective moral standard by which we judge some things evil, and such an objective standard is difficult to ground without a transcendent Good — ironically, the problem of evil, pressed to its root, points back toward God rather than away from him. The Church does not offer a glib theodicy explaining every individual tragedy but proclaims a God who entered into suffering himself in Christ, promising that in the age to come, 'he will wipe away every tear.'

Scripture references

Genesis 50:20
Romans 8:28
Job 38-42
Revelation 21:4
Isaiah 55:8-9

Catechism

CCC 309
CCC 310
CCC 324

The Church Fathers

God judged it better to bring good out of evil than not to permit any evil to exist.
St. Augustine of Hippo · Enchiridion 11 (c. AD 421)
Evil has no positive nature; but the loss of good has received the name evil.
St. Augustine of Hippo · Confessions 7.12 (c. AD 397)

Mistakes to avoid

  • Offering a glib, one-size-fits-all theodicy that trivializes real suffering.
  • Conflating moral evil (from free will) and natural evil, which need somewhat different treatments.
  • Failing to acknowledge the emotional weight of the question before moving to philosophy.
  • Not mentioning that God himself entered into suffering in Christ, which is central to the Christian (not merely theistic) answer.

Practice drills

Choose the response you would give, then see how it holds up.

Objection

'Even if free will explains moral evil like murder, it doesn't explain natural evil like earthquakes and childhood cancer, which have no human free choice behind them.'

Objection

'Saying evil is just an "absence of good" is a word game that doesn't change the fact that real suffering happens.'

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