Is the Problem of Evil the Strongest Argument Against Christianity?

The problem of evil has force because evil is not abstract. People suffer abuse, war, disease, bereavement and disaster. A Christian answer should not begin by pretending this is easy. It should begin by asking what the argument actually proves, and whether Christianity already has categories for a world where God is good and powerful while evil is real. We think that is a better starting point than rushing to a single slogan such as “free will”. The Christian answer is broader, and it needs to be.

Does evil logically rule out an all-good, all-powerful God?

Not by itself. The argument only succeeds if an all-good God must prevent every evil immediately. Christianity denies that assumption. Scripture presents God as able to permit evil for a time without approving it, losing control of it or becoming its author.

Genesis 50:20 captures the distinction clearly: Joseph’s brothers meant evil, while God meant the same event for good. The human intention remained wicked. God’s providence did not turn evil into goodness; it overruled evil toward a righteous end. The same pattern appears at the cross, where sinful human actions and God’s saving purpose meet without being morally confused.

This is one reason we would resist the claim that divine sovereignty automatically makes God morally guilty for every evil act. Scripture distinguishes between God’s holy purpose and the corrupt intentions of creatures. That distinction is difficult, but it is not incoherent.

Does free will explain all suffering?

No, and Christians should not pretend it does. Human choices help explain moral evil: murder, betrayal, cruelty and oppression arise from creatures acting against God and neighbour. But earthquakes, cancer, disability, famine and other forms of natural suffering require a wider biblical frame.

Romans 8:18–25 describes creation itself as groaning and awaiting renewal. Christianity says the world is not presently in its final intended state. Human sin, death and disorder belong to a fallen creation that God will one day restore.

That matters because a free-will-only answer is too small. It can explain why a person commits an act of violence, but not why a child develops cancer. We think Christians are more credible when they admit that distinction instead of stretching one argument beyond what it can carry.

Why would God permit evil at all?

Christians do not claim to know God’s reason for every instance of suffering. That would be presumptuous. What Christianity does claim is that God can have morally sufficient reasons for permitting what He hates, and that His wisdom exceeds ours. Isaiah 55:8–9 reminds us that God’s thoughts and ways are higher than ours, though that verse should never be used to silence grief or honest questions.

Acts 2:23 says Jesus was delivered up according to God’s definite plan, while those who crucified Him were still guilty. The cross therefore shows divine purpose and human evil operating together without collapsing into the same thing.

The historic Christian doctrine of providence has long tried to preserve both truths: God is never helpless, and creatures remain morally responsible. The Encyclopaedia Britannica overview of providence gives useful historical background on how Christians have described God’s governing care over creation.

What about natural evil and children’s suffering?

This is where glib answers become pastorally damaging. We should not tell grieving people that a particular tragedy happened because they lacked faith or because God wanted to teach them one simple lesson. Christianity gives us permission to lament, protest and weep. The Psalms repeatedly model that kind of honest faith.

At the same time, suffering does not show that God is indifferent. In Christ, God enters the world’s suffering rather than observing it from safety. Hebrews 4:14–16 presents Jesus as a high priest who can sympathise with our weakness, while 1 Peter 3:18 says Christ suffered for sins.

For us, this is one of Christianity’s most important contributions to the problem of evil. It does not give a detached philosophical answer and stop there. It says God has entered the history of suffering in the person of the Son.

Why is the cross central to the answer?

Because Christianity’s answer to evil is not merely philosophical. At the cross, God judges sin and bears suffering in the person of the Son. The worst human injustice in history becomes the means of redemption without ceasing to be injustice.

That matters because it shows God is neither morally detached from evil nor defeated by it. He can permit what He opposes, judge it rightly and bring good through it without becoming evil Himself. Our article on how Christians understand eternal judgment explores why divine justice is not arbitrary punishment, while why the resurrection matters for suffering now explains why the cross cannot be separated from the promise of life beyond death.

Does Christianity promise that every evil will finally be answered?

Yes. Christianity does not say history simply fades out with unresolved evil. Revelation 21:1–5 points to a renewed creation in which death, mourning and pain are removed. Revelation 20:11–15 presents final judgment before that renewal. No hidden cruelty is forgotten, and suffering is not permanent.

We think this is where the Christian answer becomes more than a defence. Christianity does not ask us to rename evil as good. It says evil is genuinely evil, God is genuinely sovereign, the cross is genuinely costly, justice will be real, and restoration will be final.

Is the problem of evil the strongest argument against Christianity?

It may be the most emotionally powerful objection, and for many people it is also the most intellectually serious. But calling it the “strongest” depends on what kind of argument is being made. The logical problem asks whether God and evil can coexist at all. The evidential problem asks whether the amount and distribution of suffering make God less likely. The existential problem asks whether God can still be trusted after real loss.

Those are related questions, but they are not identical. A response that answers only the logical form may leave the deeper human question untouched. We think good apologetics should know which question is actually being asked before offering an answer.

For more on that pastoral dimension, see why God can feel hidden in suffering and doubt and what to do when you do not have a complete answer.

How to say it gently

You could say: “The problem of evil is one of Christianity’s hardest questions, and free will alone does not answer every form of suffering. Christians believe God can permit evil without approving it, that creation itself is fallen, and that God enters suffering in Christ, judges evil and promises final restoration.”

What not to say

Do not say, “Everything happens for a reason,” as though that explains a person’s pain. Do not make free will carry the whole argument when natural suffering is part of the objection. And do not speak as though we know God’s specific reason for every tragedy. Christian confidence should be strong where Scripture is strong and humble where Scripture is not specific.