CT 19: Infinite Power of God

Last updated on: December 23, 2014 at 3:16 pm by willduquette

CT 19: Infinite Power of God 2014-12-23T15:16:49-05:00 willduquette

LOGO Patheos Explore the world's faith through different perspectives on religion and spirituality! Patheos has the views of the prevalent religions and spiritualities of the world.

We’re blogging through St. Thomas Aquinas’ Compendium Theologiae, sometimes called his Shorter Summa. Find the previous posts here.

Having now established that God is infinite, and having distinguished between this and a purely mathematical notion of infinity, Thomas now goes on to say what it means for God to be infinite.

The further inference is drawn that God is infinite in power. For power is consequent upon a thing’s essence; anything whatever possesses a power of activity consonant with its manner of being. Therefore, if God is infinite in His essence, His power must be infinite.

Bread: more act, less potency!

Any thing whatsoever can do whatever it does by virtue of what it is. An unsupported boulder can “seek” the lowest point and crush the car waiting there by virtue of being a large mass of stone. A dog can chase a cat by virtue of being an animal capable of locomotion. A human being can write a novel or a poem by virtue of being rational. The higher the essence, the greater the power. God’s essence is infinite, and hence God must be infinite in power.

Having made this bare statement, Thomas goes on to support it by reflecting on act and potency.

This is clear to anyone who will inspect the order of things. Whatever is in potency, is thereby endowed with receptive and passive power; and so far as a thing is in act, it possesses active power.

Flour: less act, more potency

A thing can change other things by virtue of what it actually is; and it can receive changes from other other things by having the potency of being changed in that way. A blank piece of paper can be written on; it has the potency of receiving and preserving marks made with ink. That’s a purely passive power; left alone, the paper will never be anything other than blank. A person armed with pen and ink has the active power of making marks on paper.

Hence what is exclusively in potency, namely, prime matter, has an unlimited power of receptivity, but has no part in active power.

Prime matter is a difficult concept; it doesn’t mean things made of atoms, or even atoms by themselves. Prime matter is what’s left when you remove all of the actuality from something: pure potency, pure receptivity, the power to become. When I eat an apple, the substance of the apple is assimilated by my body and becomes part of my body. What it is has changed. For Aristotle, there must be something that stands under any kind of change, something that remains unchanged; and for substantial change, something becoming something entirely different, that something is called prime matter.

You might say that prime matter is something like zero in arithmetic: there’s nothing there, but O what an important nothing it is.

But Thomas’ point is that in any being you can see a proportion between act and potency; and that being has active power insofar as it is in act, and is receptive of power insofar as it is in potency. If you reduce act to zero, leaving only potency, then in the limit you get prime matter, pure receptivity. And if, on the other hand, you reduce potency to zero and increase act to infinity, as with God, then you get pure (and infinite) power:

And in the scale of being above matter, the more a thing has of form, the more it abounds in the power of acting. This is why fire is the most active of all the elements. Therefore God, who is pure act without any admixture of potency, infinitely abounds in active power above all things.

In short, then, Thomas has now shown that not only does God exist, God is also omnipotent.

Believing Thomas

compendium theologiae

Thomas Aquinas

Previous Post

December 6, 2014

Quill v0.4.0

Next Post

December 9, 2014 Review: Honor Harrington and the Honorverse

Browse Our Archives

Select a Category Admin App o' the Morning Ask the Dogmat Believing Thomas Bits of Fiction Blasts from the Past Bootstrapping the Interior Life Catholic Mom Christian Living Deep Thoughts from the Doghouse Dominicana Evangelii Gaudium Interviews It Was A Dark and Stormy Night Links to This and That Lumen Fidei Meme Watch On Writing Operation Gratitude Pedant Errant Photography Quill Random Barkings S'Mary's World Shakers of Salt Software Development The Dog Whistler The Dogmat Sez Third Orders Thomas Aquinas Uncategorized Vikings at Dinos Woof Guide to Cinema Woof Guide to History Woof Guide to Literature Woof Guide to Obscure Catholic Music Woof Guide to Philosophy Woof Guide to Popular Music Woof Guide to Technology Woof Guide to Theology Words I Wish I'd Written Works For Me

Select a Month September 2016 August 2016 June 2016 May 2016 April 2016 March 2016 February 2016 January 2016 December 2015 November 2015 October 2015 September 2015 August 2015 July 2015 June 2015 May 2015 April 2015 March 2015 February 2015 January 2015 December 2014 November 2014 October 2014 September 2014 August 2014 July 2014 June 2014 May 2014 April 2014 March 2014 February 2014 January 2014 December 2013 November 2013 October 2013

TAKE THE

Religious Wisdom Quiz

Who was the prophet after Moses?

Select your answer to see how you score.

Elijah Joshua Isaiah Samuel