Debate Logic

The Epicurean Paradox: The Logic Problem God Cannot Solve

LM
Lyndon Marais
Secular Toolkit Founder
January 12, 2026
3 min read
The Epicurean Paradox: The Logic Problem God Cannot Solve
If God is all-good, all-knowing, and all-powerful, why does evil exist? The logical contradiction is older than Christianity itself.

The Epicurean Paradox: The Logic Problem God Cannot Solve

A child is diagnosed with bone cancer. An earthquake kills thousands. A good person suffers while the wicked prosper. If an all-loving, all-knowing, all-powerful God exists, why does any of this happen? This question is not new. It was formulated by the Greek philosopher Epicurus over 2,300 years ago, and religious thinkers have been struggling with it ever since.

The Trilemma

The Problem of Evil, also called the Epicurean Paradox, presents a logical impossibility. God is traditionally defined as possessing three attributes:
  • Omnipotent (All-Powerful): God can do anything
  • Omniscient (All-Knowing): God knows everything
  • Omnibenevolent (All-Good): God wants only good
  • Evil exists. This is undeniable. The question is: how can all three divine attributes coexist with the reality of suffering?

    The Toolkit Takeaway: The Epicurean Flowchart

    Epicurus laid out the logic in a simple flowchart that has never been satisfactorily answered:

    Does God Want to Prevent Evil?

    If No: Then He is not all-good (omnibenevolent). A being who is indifferent to suffering is not the loving God of theism. If Yes: Move to the next question.

    Can God Prevent Evil?

    If No: Then He is not all-powerful (omnipotent). A being with limited power is not the God of classical theism. If Yes: Move to the next question.

    Does God Know About Evil?

    If No: Then He is not all-knowing (omniscient). But this contradicts the definition of God. If Yes: Then why does evil exist?

    The Only Logical Conclusions

    Given the existence of evil, at least one of the following must be true:
  • God exists but is not all-powerful (He cannot prevent evil)
  • God exists but is not all-knowing (He does not know about evil)
  • God exists but is not all-good (He does not care about evil)
  • God does not exist
  • There is no fifth option that preserves all three attributes while acknowledging the reality of suffering.

    Common Objections

    "Evil is a Test"

    An all-knowing God would already know the outcome. What is being tested?

    "Evil Builds Character"

    This does not explain the suffering of infants or animals, who cannot develop character.

    "We Cannot Understand God's Plan"

    This is an admission that the problem has no answer. It is also special pleading: we are expected to believe in God's goodness based on scripture, but when scripture contradicts reality, we must accept mystery.

    "Free Will"

    This is the most common response and deserves its own treatment. We address it in our article on The Free Will Defense.

    The Bottom Line

    The Problem of Evil is not an emotional argument. It is a logical one. The three-part definition of God is internally contradictory when confronted with the undeniable reality of suffering. Epicurus identified this 23 centuries ago, and no theologian has ever resolved it.

    LM

    About Lyndon Marais

    Founder and Solo Developer of The Secular Toolkit.

    Write for us →