(P1)Every moving or changing thing requires an external cause of its motion. An infinite regress of causes explains nothing and grounds nothing.
+This argument draws on Thomas Aquinas's First Way, the argument from motion, and works in concert with two arguments already established in the Natural Theology section: the Kalam Cosmological Argument, which demonstrates the universe cannot be infinite in the past and requires a transcendent uncaused cause, and the Leibniz Contingency Argument, which demonstrates that contingent beings cannot explain their own existence and require a necessary being as their ultimate ground. Together, these arguments converge on the same conclusion from three different angles. Here the focus is Aquinas's First Way applied specifically to the Mormon chain of gods, showing that the structure Mormon theology requires is precisely the structure these arguments prove impossible.
(1) The First Way: everything moved is moved by another.
- Aquinas observed that things in the world are in motion or undergoing change. A thing in motion is being actualized, meaning a potential is being made real by something else. A rock falls because gravity acts on it. A seed grows because nutrients and sunlight act on it. Nothing moves or changes purely on its own.
- This means every instance of motion or change requires an external mover. The mover causing A to move was itself moved by something before it, and so on.
- The critical question is: can this chain go back infinitely?
(2) An infinite regress of movers explains nothing.
- Aquinas argued that an infinite chain of movers, in which every mover depends on a prior mover to give it the capacity to move, cannot actually explain why anything is moving at all.
- The illustration is exact: imagine trying to explain why a train is moving by pointing to an infinite line of boxcars, each one being pushed by the car behind it. No matter how far back you extend the chain, if there is no engine at the front, nothing moves. The chain does not self-explain. It requires a starting point that does not itself need to be pushed.
- Infinite chains of dependent causes are not explanations. They are philosophical procrastination: explaining motion by appealing to another motion, and another, and another, without ever arriving at something that grounds the whole.
(3) Therefore there must be a First Mover that is itself unmoved.
- Logic requires that the chain terminate in something that moves without itself being moved. Something whose action does not depend on a prior cause. Something whose very nature is to be, rather than to become.
- Aquinas calls this the Unmoved Mover, a being of pure actuality with no unrealized potential, no dependence, no change. This is not one more link in the chain. It is the foundation that makes the chain possible at all.
- This is precisely what historic Christianity has always claimed about God: he is the self-existent, uncaused, unchanging ground of all reality. "I AM WHO I AM." (Exodus 3:14). "Before the mountains were born or you brought forth the whole world, from everlasting to everlasting you are God." (Psalm 90:2).
(P2)Mormon theology explicitly teaches an infinite chain of gods, each dependent on a prior god, with no First Mover and no self-existent foundation. Aquinas's argument collapses this structure entirely.
+(1) The Mormon chain of gods is precisely the infinite regress Aquinas refuted.
- As established in the preceding argument, Joseph Smith taught in the King Follett Discourse that God the Father was once a mortal man who progressed to godhood. His own Father was also a god who had once been a man. Joseph Fielding Smith, the tenth LDS President, confirmed the implication plainly: "The Prophet taught that our Father had a Father and so on."
- LDS Apostle Orson Pratt extended this even further, stating that the chain of divine ancestry stretches infinitely into the past. There is no god in the Mormon system who was not himself once a mortal dependent on a prior god.
- This is the textbook infinite regress Aquinas dismantled. Every god in the Mormon chain is contingent: their existence depends on a prior god, who depended on a prior god before him. There is no engine at the front of the train. There is no Unmoved Mover. There is no self-existent foundation.
(2) Three specific failures under the Aquinas framework.
- First: an infinite chain of Mormon gods explains nothing. If every god became a god through a process overseen by a prior god, then the existence of any god in the chain is always borrowed from something before it. You cannot explain why anything divine exists by pointing to an infinite line of dependent divinities, any more than you can explain why the train moves by adding more boxcars.
- Second: you cannot build necessary existence out of an infinite stack of contingent beings. Each Mormon god is a being who might not have become a god, who went through a process, who depended on another to guide that process. Stack infinitely many contingent beings on top of each other and you still have nothing that had to exist. The house of cards has no table. There is no necessary foundation beneath the entire structure. The Leibniz Contingency Argument (see Natural Theology section) makes this same point from a different angle: contingent things, things that could have failed to exist, require an explanation outside themselves, and no collection of contingent things, however large or infinite, can collectively provide what each member individually lacks.
- Third: the Mormon God does not provide an Unmoved Mover. The God Mormons worship was himself moved from mortality to divinity by a prior divine agency. He is not the source of motion. He is one more instance of it. He cannot serve as the ultimate explanation for why anything exists or changes, because he himself required an explanation.
(3) The Mormon God is therefore not the God of Scripture, philosophy, or coherent theology.
- The God of Isaiah says: "I am the first and I am the last; apart from me there is no God." (Isaiah 44:6). A being who was once a mortal man guided by a prior God is not the first. He is not the last. He is one contingent being among an infinite chain of contingent beings.
- The God of Exodus says "I AM WHO I AM," expressing pure, self-grounded existence. The Mormon God's existence is not self-grounded. It was achieved. It was given. It depended on conditions outside himself.
- The God of classical Christian theology, the God of Aquinas, Augustine, and the Nicene Creed, is not one more member of a cosmic pantheon. He is the uncaused cause, the ground of being itself, the one in whom all contingent things find their foundation. That is a fundamentally different kind of being from the God Smith described.
(C)Therefore, the Mormon conception of God fails the most basic test of rational theology: it provides no ultimate ground for existence, no unmoved mover, and no self-existent foundation. It replaces God with an infinite chain of dependent beings, which Aquinas demonstrated eight centuries ago cannot explain anything.
+(1) The argument is not merely philosophical. It is theological.
- The God of the Bible is not simply one very powerful being among others. He is the being whose nature is existence itself: "I AM." Every other being exists contingently, by receiving existence from outside itself. God alone exists necessarily, by his own nature.
- Mormon theology replaces this God with a being who received his divinity from outside himself, who was actualized by a prior god, who is one more contingent being in an infinite chain. This is not a nuance or a secondary disagreement. It is a completely different answer to the question of what God is.
(2) This matters for salvation, not just philosophy.
- If God is himself a contingent being who progressed to divinity, then the ground of salvation is itself contingent. The being in whom Latter-day Saints place their trust for exaltation is not self-existent. His own existence was dependent. His own status was achieved. The chain of dependency continues all the way up, with no foundation beneath it.
- The God of Christian theology is the one in whom we live and move and have our being (Acts 17:28). He does not merely exist; he is the source of existence. That is the God who can redeem, sustain, and bring creation to its end.
(3) This argument was not answered by Smith, and has not been answered by LDS theology.
- Joseph Smith delivered the King Follett Discourse less than three months before his death, with no philosophical engagement with the implications of infinite regress. The modern LDS Church has quietly retreated from the doctrine without addressing the philosophical problem it creates. The evidence for this retreat is not secondhand. In an August 1997 interview with TIME magazine, President Gordon B. Hinckley was asked directly whether the Church still holds that God the Father was once a man. He replied: "I don't know that we teach it. I don't know that we emphasize it... I understand the philosophical background behind it, but I don't know a lot about it, and I don't think others know a lot about it." The sitting President, Prophet, Seer, and Revelator of the LDS Church claimed not to know whether his own institution still teaches a doctrine Joseph Smith proclaimed as central revealed truth three months before his death. That is not doctrinal correction. That is institutional reticence in the face of an unanswered philosophical problem.
- The argument from motion was formulated 800 years ago. The Mormon chain of gods was formulated in 1844. The critique, that an infinite chain of contingent movers cannot explain why anything moves, applies to Mormon theology with the same force it applies to every other infinite regress. It has not been answered. It cannot be answered within Mormon theology's own framework, because the framework requires the very kind of infinite regress these arguments prove impossible.
- The Kalam Cosmological Argument (see Natural Theology section) reinforces this from a different direction: an infinite past series of causes is impossible, since an actual infinite cannot be traversed to arrive at the present. If the chain of Mormon gods stretches infinitely into the past, the Kalam argument applies directly: we could never have arrived at the present god if the chain had no beginning. Yet here we are. The chain must have a beginning, and Mormon theology provides none.
See also:
• Natural Theology: Kalam Cosmological Argument• Natural Theology: Leibniz' Contingency Argument
Thomas Aquinas, Summa Theologiae, I, Q.2, Art.3 (The Five Ways). Translated by Fathers of the English Dominican Province. New York: Benziger Bros., 1948.
Joseph Smith, King Follett Discourse (April 7, 1844), Times and Seasons 5 (August 15, 1844): 612-17.
Joseph Fielding Smith, Doctrines of Salvation, Vol. 1, p. 12. Salt Lake City: Bookcraft, 1954.
Orson Pratt, The Seer, Vol. 1, No. 3 (March 1853), pp. 37-39. (Pratt's periodical in which he develops the doctrine of an infinite regression of gods and worlds. Note: Pratt's speculative theology was at times disputed by Brigham Young, but the core chain-of-gods doctrine rests not on Pratt alone but on Joseph Smith's King Follett Discourse and on Joseph Fielding Smith's explicit statement cited above. Pratt extends the logical implication Smith's teaching requires.)
Orson Pratt, Key to the Science of Theology. Liverpool: F. D. Richards, 1855, chapters 2-3. (Pratt's systematic treatment of eternal progression and the chain of divine beings.)
Isaiah 44:6; Exodus 3:14; Psalm 90:2; Acts 17:28 (NIV).
Gordon B. Hinckley, interview with David Van Biema, TIME magazine, August 4, 1997 ("Kingdom Come" issue), p. 56. (Hinckley stated: "I don't know that we teach it. I don't know that we emphasize it... I understand the philosophical background behind it, but I don't know a lot about it, and I don't think others know a lot about it." -- in response to a direct question about whether the Church still holds that God the Father was once a man.)
+Aquinas's argument belongs to medieval physics. Modern science has moved on. Quantum mechanics shows that events can occur without prior causes, and cosmological models suggest the universe may not need a first cause at all.
1. Aquinas's argument is metaphysical, not physical, and modern science does not touch it.
The First Way is not a claim about what physicists have or have not discovered. It is a claim about the logical structure of causation itself: that a chain of dependent causes cannot explain itself without a self-existent foundation. Quantum mechanics describes probabilistic outcomes within a framework of physical laws, quantum fields, spacetime, and mathematical structure. None of that is "nothing." The question Aquinas is asking goes deeper: why does the physical framework itself exist, and why is anything changing at all? Physics operates within reality. Aquinas is asking about the ground of reality. These are different questions.
2. The quantum mechanics objection does not apply to the Mormon chain of gods anyway.
Quantum fluctuations, if they were uncaused (which is disputed), would be events within a physical substrate, not divine beings ascending through mortal progression. The Mormon problem is not about subatomic particles. It is about an infinite chain of personal divine beings, each one dependent on a prior divine being for its existence and divinity. Quantum indeterminacy does not produce gods from prior gods. The objection is a category error.
3. The infinite regress problem is logical, not empirical, and no physical discovery can resolve it.
No matter how many layers of causation physics discovers, the question "why does this chain of causes exist rather than nothing?" remains. An infinite physical chain is no more self-explanatory than a finite one. The train with infinite boxcars still does not move without an engine. The logical point is airtight: a chain of beings that each require something outside themselves to exist cannot, taken together, produce a self-grounding explanation. That conclusion is reached by reason, not by experiment, and it cannot be overturned by experiment.
+LDS theology teaches that matter and intelligence are eternal and uncreated. The regress does not have to go back infinitely through gods. It terminates in the eternal substrate of uncreated intelligences. This gives Mormon theology a foundation that is not itself caused.
1. Eternal uncreated matter does not produce gods. Gods produce gods, and the regress continues.
The LDS concept of eternal intelligences and eternal matter addresses the origin of the raw material of reality. But it does not address the chain of personal divine beings. Each god in the Mormon system was organized into a spirit by a prior god, lived a mortal life overseen by a prior god's plan, and was exalted through a process administered by a prior god. The eternal substrate of matter and intelligences is the clay. But the question of who shaped the clay into gods, and who shaped that god-shaper, and so on, is not answered by pointing to eternal clay. The chain of personal divine causation continues regardless of what the underlying substrate is.
2. If eternal intelligences are truly self-existent, Mormon theology has unknowingly conceded the classical theist point.
If uncreated, eternal, self-existent reality is what ultimately grounds the Mormon system, then Mormon theology has introduced a necessary, uncaused foundation of being by another name. Classical theism calls this God. Mormon theology calls it eternal matter and intelligence. But in both cases, the logical work of grounding contingent existence is being done by something that simply is, without cause or origin. The difference is that classical theism identifies this self-existent ground as a personal, rational, all-powerful being. Mormon theology assigns it to impersonal raw material, which raises its own questions about how impersonal, undirected eternal matter produces an ordered cosmos of gods and worlds.
3. This solution was not taught by Joseph Smith, and contradicts the King Follett Discourse.
Smith did not say the chain terminates in eternal intelligences. He said "the Father wrought precisely in the same way as His Father had done before Him," implying a chain of personal divine beings, not a terminus in impersonal matter. Joseph Fielding Smith's "and so on" was not a reference to eternal intelligences. It was a description of an unending chain of gods. The "eternal intelligences as foundation" position is a post-hoc philosophical patch applied to a doctrine that, in its original formulation, generates a straightforward infinite regress of personal divine causes with no terminus.
+Christians say God has always existed and has no cause. Mormons say the chain of gods has always existed. Both involve an infinite past or an unexplained brute fact. Christians are not in a better position here; they have just moved the unexplained starting point to a different place.
1. There is a decisive difference between a necessary being and an infinite chain of contingent ones.
This objection assumes the two positions are equivalent, but they are not. Classical Christian theology does not say God is an unexplained brute fact that just happens to have always been around. It says God is a necessary being: one whose non-existence is impossible, whose essence is existence itself, who cannot not exist. This is not the same as an infinite chain. A necessary being is self-explanatory by nature. An infinite chain of contingent beings is never self-explanatory, no matter how long the chain.
Think of it this way: if asked why there is a number 1, we can say that mathematical necessity requires it. The number 1 does not exist contingently. It could not fail to exist. That is different from asking why there is a particular rock on a particular beach, which is a contingent fact that requires an external explanation. The Christian God is like the first case. The Mormon chain of gods is like an infinite series of the second case, and stacking an infinite number of contingent facts never produces necessity.
2. The regress problem is asymmetric: it applies to chains but not to necessary beings.
Aquinas's argument is not "everything has a cause, therefore God has a cause too, leading to an infinite regress." That would be a misreading. The argument is: "everything that is moved or changed requires an external cause, EXCEPT a being whose nature is to be unmoved, whose essence is pure actuality with no unrealized potential." The Unmoved Mover is not an exception granted arbitrarily. It is the logical terminus required by the argument itself. The argument stops at pure actuality because pure actuality is the only kind of being that does not need an external cause by its very nature. Mormon gods are not pure actuality. They were potential mortals who became actual gods. They are paradigm cases of actualized potential, exactly what the argument says requires an external cause.
3. The objection proves too much.
If "you also have an unexplained starting point" were a valid rebuttal to the argument from motion, it would apply equally to every explanatory framework, including science. Physics also terminates in a set of laws and initial conditions that it does not explain. We do not therefore conclude that physics explains nothing. The structure of a good explanation is that it terminates in the most fundamental level of explanation available, ideally one that is self-explanatory. Classical theism offers a self-explanatory terminus: a being whose nature is existence itself. Mormon theology offers no terminus at all: just an infinite chain that pushes the question backward forever.
+The King Follett Discourse is a funeral sermon, not canonized LDS scripture. The LDS canon consists of the Bible, Book of Mormon, Doctrine and Covenants, and Pearl of Great Price. None of them contain the chain-of-gods doctrine. You are attacking speculative theology, not binding LDS teaching. A Christian apologist should engage with what the Church actually canonizes, not with a single controversial sermon.
1. The King Follett Discourse was delivered by the President and Prophet of the Church in his official prophetic capacity and published in the Church's own newspaper.
Joseph Smith delivered the discourse on April 7, 1844, at the April General Conference of the Church, the most authoritative doctrinal setting the LDS Church has. It was published in the Church's own periodical, the Times and Seasons, in August 1844. General Conference addresses by the President and Prophet of the LDS Church are not casual private opinions. They are the exercise of the prophetic office the Church claims is ongoing and authoritative. If a teaching delivered by the President and Prophet at General Conference does not bind LDS theology, then the entire claim to living prophetic authority collapses, because there is no mechanism by which prophetic teaching ever reaches the people.
2. The doctrine was explicitly affirmed by Joseph Fielding Smith in canonized LDS scripture.
This argument does not rest on the King Follett Discourse alone. Joseph Fielding Smith, the tenth President and Prophet of the LDS Church, wrote in Doctrines of Salvation Vol. 1, p. 12: "The Prophet taught that our Father had a Father and so on." Doctrines of Salvation is published by Bookcraft and has been treated as authoritative doctrinal commentary throughout the twentieth century in LDS education. The infinite regress is not confined to a single funeral sermon. It is the logical implication of a teaching explicitly confirmed by a subsequent President.
3. The "not canonical" defense is the very retreat this argument predicted — and Hinckley's own clarification does not rescue it.
The Hinckley TIME interview of August 1997 showed the sitting LDS President declining to confirm whether the Church still teaches that God was once a man, saying "I don't know that we teach it." That is not a doctrinal correction, a new revelation, or a formal revision of the canon. It is institutional reticence: quietly stopping emphasis on a teaching whose philosophical consequences are embarrassing, without formally removing it.
LDS apologists will point out that Hinckley addressed the controversy at October 1997 General Conference, stating he had been "misquoted and misunderstood" and that he understood Church doctrine "thoroughly." This response does not close the problem. Notice what Hinckley did not do at that General Conference: he did not stand before the Church and affirm that God the Father was once a mortal man. He contested the framing of the interview. He did not restore the substance of the doctrine. A prophet who truly believed the King Follett teaching was binding, authoritative, and central would have used that platform to say so plainly. He did not. The retreat from the doctrine's substance remains intact even with the clarification about the interview's tone.
The "not canonical" objection is the theological cover story for that retreat. The LDS Church does not say the King Follett Doctrine is false. It says it does not emphasize it. Those are very different statements, and the difference is exactly what this argument is about.
+Mormonism is a revealed religion, not a philosophical system. It does not claim to satisfy Aquinas's metaphysical framework, and it does not need to. Judging Mormon theology by the standards of medieval scholasticism is a category error. God revealed his nature to Joseph Smith. That revelation is not required to conform to philosophical categories invented centuries later by a Catholic theologian.
1. This defeater destroys the LDS position from the inside.
If Mormon theology is exempt from philosophical standards because it is revealed rather than systematic, then the claims of the King Follett Discourse cannot be offered as truths about the nature of God and human destiny. You cannot claim the benefits of theological assertion while claiming exemption from the requirements of theological coherence. Joseph Smith did not say "here is a poetic image of divinity that resists analysis." He said: "God himself was once as we are now... He was once a man like us." That is a truth claim about the actual nature of God and the actual history of divine existence. Truth claims about the nature of God are subject to the same logical standards as any other truth claim. If the claim is true, it must be consistent. If it is inconsistent, it cannot be true.
2. The logical problem does not originate with Aquinas. It originates with the structure of the claim itself.
Aquinas did not invent the principle that an infinite chain of dependent causes cannot explain itself. That principle follows from the nature of explanation. To explain why something exists, you must appeal to something outside it. If that outside thing also requires explanation, the chain never terminates, and you have explained nothing. This is not a medieval scholastic peculiarity. It is the same principle that governs every domain of rational inquiry. If a Mormon apologist were told that a scientist explained the existence of the universe by pointing to a prior universe, which was explained by a prior universe, infinitely back, the apologist would immediately recognize the problem. The point is not that Aquinas has authority over LDS theology. The point is that infinite regresses do not explain anything, and that is as true of chains of gods as it is of chains of universes.
3. Revelation and logical coherence are not alternatives. The God of the Bible is both revealed and rational.
The Bible presents God as the one who says "Come, let us reason together" (Isaiah 1:18), whose Word is Logos (John 1:1), the rational ground of all reality. The God of Christian Scripture is not irrational, arbitrary, or incoherent. A genuine revelation of God's nature would not require abandoning logic to accept it. If the Mormon account of God is incoherent under rational examination, that is not evidence that revelation transcends reason. It is evidence that the account is not a genuine revelation of what God is. A true revelation of God's nature will be consistent with reason, because God is the source of both reason and revelation.