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S i d e b a r
Why God Can’t Change His Mind


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This Rock
Volume 20, Number 3
March 2009
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Is Dawkins correct that omnipotence and immutability are mutually exclusive? It is true that we can do things that God cannot do. For example, we can kill ourselves, we can be deceived, and we can get injured. God cannot die, cannot be deceived, and cannot be injured. However, that God cannot do such things does not mean that God is not all-powerful because the potential to die, to be in error, and to be injured really indicates not a perfection but a lack of perfection, not power but a lack of full power.
Is changing your mind a power and perfection or a lack of power and perfection? If you do not know something and you change your mind to knowing it, such a change makes you more perfect. But in Thomas’s view, God already knows everything. So if God were to change with respect to knowledge, it would not be a manifestation of perfection but a falling away from perfect knowledge. Therefore, omniscience and immutability are not self-contradictory, but rather different characteristics that necessarily belong to the first cause we call God.
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