The Summa Theologiae, Part I, Question 2
St. Thomas Aquinas sets out to show that God exists, and before he gives a single argument he writes down the objection against it. It reads: “If, therefore, God existed, there would be no evil discoverable; but there is evil in the world.” Therefore, the objection concludes, God doesn’t exist.6
He didn’t hide it in a footnote. It’s Objection 1. This page tries to take it as seriously as he did.
01The objection
At full strength
Children get cancer. Earthquakes bury whole towns. Animals suffered and died for ages before any human being existed. People do terrible things to each other. If an all-good, all-powerful God exists, why does He allow any of it? If you are asking this because of your own pain, it is not a debating point, and nothing here is meant to tidy it away.
The Catechism calls this question “as pressing as it is unavoidable and as painful as it is mysterious,” and says that “no quick answer will suffice.”1 It quotes St. Augustine on his own search: “I sought whence evil comes and there was no solution.”7
Start with the evil people choose. Then we’ll come to the evil nobody chose.
02Moral evil
Freedom, and good brought out of evil
God is in no way the cause of moral evil. He permits it because He respects the freedom of His creatures, and He knows how to bring good from it.3
Aquinas answers his own objection with Augustine: “Since God is the highest good, He would not allow any evil to exist in His works, unless His omnipotence and goodness were such as to bring good even out of evil.”6
“As for you, you meant evil against me, but God meant it for good, to save many people alive, as is happening today.”
But freedom doesn’t explain an earthquake, or a deer dying in a forest fire.
03Beyond free will
Animals, earthquakes, and a world on the way
Free will explains a great deal of human cruelty. It does not explain suffering in nature that no one chose. An honest answer has to say something about that, or admit it has nothing to say.
The Catechism asks the question directly: why did God not create a world so perfect that no evil could exist in it? Its answer is that God freely willed a world “in a state of journeying” towards its ultimate perfection. In that process some beings appear and others disappear, with “both constructive and destructive forces of nature.”2
Aquinas argued from the order of creation in the same way: “the perfection of the universe requires that there should be inequality in things, so that every grade of goodness may be realized.” One of those grades, he says, is “the good which can fail in goodness.”9
He applied this even to animals: “if all evil were prevented, much good would be absent from the universe.” His example is the lion, which “would cease to live, if there were no slaying of animals.”10
“that the creation itself also will be delivered from the bondage of decay into the liberty of the glory of the children of God. For we know that the whole creation groans and travails in pain together until now.”
Be clear about what this does. It is an argument about the whole of creation. It is not a comfort for one creature in pain, and the Church does not offer it as one.
An argument about the whole still leaves a question: does God stand outside the pain He permits?
04The center
God on the inside of suffering
“Jesus wept.”
Jesus did not heal every sick person He met; His healings were signs pointing to a deeper healing, the victory over sin and death through His Passover.4
On the cross Christ took upon Himself the whole weight of evil.4 He didn’t explain suffering from a distance; He entered it, “becoming obedient to the point of death, yes, the death of the cross.”13
“About the ninth hour Jesus cried with a loud voice, saying, ‘Eli, Eli, lima sabachthani?’ That is, ‘My God, my God, why have you forsaken me?’”
The worst evil ever committed, the rejection and murder of God’s only Son, became the place where God brought about the greatest of goods: the glorification of Christ and our redemption.15 Because of this, suffering itself has a new meaning: it can unite us with His redemptive Passion.4
“He will wipe away every tear from their eyes. Death will be no more; neither will there be mourning, nor crying, nor pain any more. The first things have passed away.’”
And just as important: what still remains mystery.
05Honest limits
What remains mystery
It does not claim that evil is secretly good: “evil never becomes a good.”15
It does not claim we can see the reason for this suffering, in this life, now. Faith holds that God wouldn’t permit an evil without bringing good from it, “by ways that we shall fully know only in eternal life.”5
And it does not offer a single sentence as the answer: “Only Christian faith as a whole constitutes the answer to this question.”1
Aquinas wrote the objection first. The Gospel writes the tears first. Both are honest.
Careful with the facts
Christian to Christian
If you’re carrying grief, you don’t have to settle this question before you’re welcome. Many believers have prayed it as a complaint, and the Bible keeps those prayers.
Only one thing to do
Your one next step
Read John 11:1-44. Notice that Jesus weeps at His friend’s grave before He does anything else. You do not have to reach any conclusion; just read it.
Read John 11Keep going
Notes
How we know · 16 sources for this page
- Catechism of the Catholic Church, paragraph 309. vatican.va
- Catechism of the Catholic Church, paragraph 310. vatican.va
- Catechism of the Catholic Church, paragraph 311. vatican.va
- Catechism of the Catholic Church, paragraph 1505. vatican.va
- Catechism of the Catholic Church, paragraph 324. vatican.va
- St. Thomas Aquinas, Summa Theologiae I, q. 2, a. 3 (c. 1265-1274). trans. Fathers of the English Dominican Province (1920), New Advent. newadvent.org
- Catechism of the Catholic Church, paragraph 385. vatican.va
- Genesis 50:20, World English Bible. read the chapter
- St. Thomas Aquinas, Summa Theologiae I, q. 48, a. 2 (c. 1265-1274). trans. Fathers of the English Dominican Province (1920), New Advent. newadvent.org
- St. Thomas Aquinas, Summa Theologiae I, q. 22, a. 2, reply to objection 2 (c. 1265-1274). trans. Fathers of the English Dominican Province (1920), New Advent. newadvent.org
- Romans 8:21-22, World English Bible. read the chapter
- John 11:35, World English Bible. read the chapter
- Philippians 2:8, World English Bible. read the chapter
- Matthew 27:46, World English Bible. read the chapter
- Catechism of the Catholic Church, paragraph 312. vatican.va
- Revelation 21:4 [Douay Apocalypse 21:4], World English Bible. read the chapter
Translations of the Fathers and councils are public-domain 19th-century editions. Catechism links open vatican.va. Scripture: World English Bible, Catholic edition, modern verse numbers (Douay-Rheims numbers in brackets where they differ). Stone & Incense restates Church teaching and history in plain words; our wording is not an official Church text. Report an errorCorrections.
