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The Thomistic Institute

God and Suffering: How Could God Allow Evil? | Rev. Thomas Petri O.P.

The Thomistic Institute

The Thomistic Institute

Christianity, Society & Culture, Catholic Intellectual Tradition, Catholic, Philosophy, Religion & Spirituality, Thomism, Catholicism

4.8729 Ratings

🗓️ 3 March 2025

⏱️ 43 minutes

🧾️ Download transcript

Summary

Fr. Thomas Petri explicates St. Thomas Aquinas's understanding of God as ipsum esse subsistens (being itself), the source of all existence and goodness, and that evil is not a thing but an absence or deficiency of good within God's ultimate plan.


This lecture was given on January 17th, 2025, at University of Michigan.


For more information on upcoming events, visit us at thomisticinstitute.org/upcoming-events


About the Speaker:


Father Thomas Petri, O.P. is the President of the Pontifical Faculty of the Immaculate Conception at the Dominican House of Studies, where he also serves as an assistant professor of moral theology and pastoral studies. Ordained a priest in 2009, he holds a Doctorate in Sacred Theology from The Catholic University of America.


Keywords: Aristotelianism, Causality, Evil, Free Will, Goodness, Ipsum Esse Subsistens, Pantheism, Summa Theologica, Suffering, Theology, Trinity

Transcript

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0:00.0

Welcome to the Tomistic Institute podcast.

0:06.2

Our mission is to promote the Catholic intellectual tradition in the university, the church, and the wider public square.

0:12.7

The lectures on this podcast are organized by university students at Temistic Institute chapters around the world.

0:19.3

To learn more and to attend these events, visit us at to mystic institute.org.

0:25.7

So for Aquinas, I'm going to give you a Latin phrase here, then I'm going to translate it.

0:30.7

Aquinas says that God is Ipsum essay subsistence, which is to say that God is being itself. God is existence itself.

0:42.1

God's essence is existence. I can't tell you how important this understanding of God is for your

0:48.2

own faith and for moving forward and thinking about the mysteries of God and the mysteries of

0:53.3

revelation. It's very common and tempting to mysteries of God and the mysteries of revelation.

1:01.3

It's very common and tempting to think of God as supreme being, as the supreme being,

1:07.3

that there's a latter, you know, atoms, molecules, insects, plants, animals,

1:10.2

us, and angels, and they're God on the top, right? That's very common. That's how most people think of it.

1:13.5

That is definitively not the correct way to think about God. For St. Thomas, God is not at the top of the ladder. He is the latter.

1:24.4

It's the better way to think about that. He is the very act of existed.

1:30.3

Even the English word being, I hope we have any English majors here, is a gerent.

1:35.3

It's an I-N-G word, right?

1:37.3

Which means it's a verbal noun that indicates an activity, like running, walking. The word being is the very act of

1:47.2

existence. So think of God as the very act of existence. He is the very act of existence itself.

1:57.3

So being is not a noun in this sense, it's a verb.

2:02.9

So a bit analogy, and St. Thomas uses this analogy in many ways, is the act of heating.

2:09.4

Fire is engaged in the act of heating.

2:13.3

Everything else that exist exist because it is participating in God's existence.

...

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