Argument

Anselms Four-Dimensionalist Eternity

Intro

Think of time the way you already think of space. You are here; other places are there; but the other places are just as real as the spot you are standing on. Anselm of Canterbury, writing in the eleventh century, made the same move with time. Your now is like your here: it marks where you are located, not what is real. Yesterday and tomorrow exist just as much as today. They are simply not where you are standing.

That single move is what modern readers call Anselm's four-dimensionalist approach, and it does an enormous amount of work. God stands outside time the way He stands outside space. He does not watch history scroll past one frame at a time; the whole timeline is spread out before Him at once, the way a whole landscape is spread out below a mountain peak. So God can act at any point in history without being trapped inside history, the way an author can write himself into any chapter of his book.

It also answers the two hardest objections to a timeless God. Does a timeless God know what time it is right now? Yes, because there is no cosmically special "now" to miss, any more than there is a cosmically special "here." And if God already knows what you will choose tomorrow, are you free? Yes, because God does not know it ahead of time at all. Your tomorrow is present to Him, and He knows your choice by seeing you make it. Your free choice is the source of His knowledge, not the other way around.

Anselm was arguably the first thinker in history to lay this out clearly, nine centuries before physicists started talking about the block universe.

In full

A defensive coherence argument, not a proof of God's existence. It defends the classical doctrine of divine eternity (Eternity (Divine)) against the two standard modern objections: that a timeless God could not be omniscient (He would not know what time it is now, A. N. Prior's objection), and that appealing to eternity fails to dissolve the dilemma of freedom and foreknowledge (eternity is as fixed as the past, Linda Zagzebski's framing). Anselm's answer, reconstructed from Monologion 14 and 20-24, Proslogion 19-20, and De Concordia 1.5 by Katherin Rogers, is that divine eternity entails a tenseless, four-dimensionalist theory of time: all times exist equally and are all immediately present to God's eternity, because it is God's eternal causal activity that sustains every time in being. "Past," "present," and "future" are indexical terms relative to a temporal perceiver, exactly as "here" and "there" are relative to a spatial perceiver. Rogers argues this makes Anselm the first clear and consistent four-dimensionalist in the history of philosophy. Eternity then functions as a further dimension enclosing all of spacetime: "just as the present time contains all place and whatever is in any place, in the same way the eternal present encloses all time and whatever exists in any time" (De Concordia 1.5). The doctrine pairs with Anselm's libertarianism: God knows free choices from the choices themselves, present to Him in eternity, so the necessity attaching to what God knows is logical (necessarily, if you choose x, you choose x), not causal. This page gives the argument in debate-prep shape alongside its sibling Argument from the Creation of Time.

Cheatsheet

30-second reply. "You are treating God like a character stuck inside the movie. Anselm's point is that God is the author. Time is a dimension of the created world, like space. God is outside time the way He is outside space, and every moment is as present to Him as every place. He does not foresee your choice from a distance; He sees you making it. Your choice is the source of His knowledge, so His knowing takes nothing from your freedom."

Fast facts.

• Anselm (1033-1109) develops the doctrine in Monologion 14 and 20-24, Proslogion 19-20, and most clearly in De Concordia 1.5, his last completed philosophical work.
• Key sentence: "Eternity has its own unique simultaneity (habet enim aeternitas suum simul) in which exist all the things that exist at the same place or time" (De Concordia 1.5).
• Proslogion 19: "Nothing contains you, but you contain everything." All times and places are in God, not God in them.
• Katherin Rogers (University of Delaware) argues Anselm is the first clear four-dimensionalist in history, anticipating the tenseless (B-theory) view of time by eight centuries.
• Boethius and Augustine gesture at the same picture but hedge with "as though present" (quasi) language; Anselm removes the hedge: things and events themselves exist in divine eternity.
• Anselm is also arguably the first systematic libertarian about free will, and the two doctrines are built to work together.

Counter-moves.

• If the objector says a timeless God cannot know what time it is now, answer: "now" is indexical like "here." There is no ontologically privileged now to be ignorant of; God knows what is now for you at t, which is all there is to know.
• If the objector says eternal knowledge is as freedom-killing as past knowledge, answer: direction of explanation. God's knowledge derives from the free act present to Him; the act does not derive from the knowledge. Necessarily, if you choose x, you choose x; that logical necessity threatens no one's freedom.
• If the objector calls it contradictory to say God is both in all time and in no time, deploy Anselm's own distinction (Monologion 22): "in" as contained by is denied; "in" as causally present to is affirmed. Different senses, no contradiction; Anselm says it is better to say God is "with" time than "in" it.

Concessions. Anselm's account prices in a claim Aquinas, Boethius, and Augustine refused: that God's knowledge of free acts derives from the acts themselves. Thomists and Reformed compatibilists reject this as compromising divine aseity; Anselm accepted it deliberately, judging the alternative (God as cause of sin) worse. The four-dimensionalist theory of time is itself philosophically contested (presentists reject it), though it fits naturally with relativistic physics. State both honestly; this is a live intramural debate, not a settled result.

Closing line. "Anselm's God is not the oldest thing in the universe. He is the reason there is a timeline at all, and every point on it is equally present to Him. That is not a paradox; it is what it means to be the Creator of time rather than its oldest inhabitant."

Argument structure

Form

Defensive coherence argument from within perfect-being theology. P1 is the Proslogion method applied to time (see Modal Ontological Argument for the method's flagship use). P2 runs on divine simplicity. P3 is the classical-theist doctrine of divine sustaining, shared with Argument from the Continuance of Being. P4 draws the four-dimensionalist conclusion. The payoff is defeating the two modern objections to Eternity (Divine); the argument does not by itself prove God exists.

P1, Eternity is a perfection of the greatest conceivable being

Affirmative case

1. The Proslogion method. God is "that than which a greater cannot be conceived." A being whose life is complete, whole, and possessed all at once is greater than a being whose life arrives one vanishing moment at a time, losing its past and lacking its future. So the greatest conceivable being is eternal in Boethius's sense: "the complete possession all at once of unending life."
2. Temporal life is loss. For temporal creatures the past is gone and the future is not yet possessed. A perfect life cannot be a life almost all of which is either lost or missing. Even unending creaturely life (angels, glorified saints) still slips away moment by moment; Anselm says God is "beyond" even these endless creatures, since what has not yet arrived for them is already present to Him (Proslogion 20).
3. Scripture's witness. Psalm 90:2 ("from everlasting to everlasting, You are God"); 2 Peter 3:8 (a thousand years as one day); Exodus 3:14 ("I AM"); John 8:58 ("before Abraham was born, I am"): the biblical God is not one more item aging inside His own creation.

Anticipated objections

1. "Why think timelessness rather than everlasting temporal duration is the perfection? A God who really lives through history with us seems more biblical (open theism, Wolterstorff)."
2. "Perfect-being intuitions are subjective; your 'greater' is not my 'greater.'"

Rebuttals

1. The everlasting-God alternative makes time God's container. If God endures through succession, then temporal order is a structure even God is subject to, and something other than God (time) conditions His life. That inverts the Creator-creature relation; see Argument from the Creation of Time for the full run of this point. The biblical texts that show God acting in history are fully accommodated: the eternal God acts at times without His life being measured by them.
2. The intuition is principled, not arbitrary. The judgment "a life wholly possessed is greater than a life mostly lost" follows from the concept of life as a good. Losing a good diminishes; the perfect being loses nothing.

Live-cite kit

• Scripture: Psalm 90:2; 2 Peter 3:8; Exodus 3:14; John 8:58; Jude 25 ("before all time and now and forever")
• Scholarly: Anselm, Proslogion 19-20; Boethius, Consolation of Philosophy V.6; Rogers, "Anselm on Eternity as the Fifth Dimension" (2006)
• Aphorism: "God is not the oldest thing in the universe; He is why there is a timeline at all."

P2, Divine simplicity rules out temporal parts in God

Affirmative case

1. Anselm's dilemma in Monologion 21. A human being exists wholly yesterday, today, and tomorrow; his life, though, accumulates part by part. If God's life were spread through time like that, "His life, which is nothing other than His eternity, would not exist all at once, but rather in parts, extended through the parts of time." But God is simple: His life is His being. A God with a past He no longer possesses and a future He does not yet possess would be a God whose very essence is divided into parts, some of which do not exist. That is impossible for the most real being.
2. The payoff. Simplicity forces the choice: either God is not simple (abandoning classical theism) or God's life has no temporal parts (eternity). See Actus Purus and Eternity (Divine).

Anticipated objections

1. "Divine simplicity is itself contested (Plantinga, open theists); you cannot lean the argument on it."

Rebuttals

1. Within the classical tradition it is common ground, and the argument's target audience holds it. The argument is a coherence defense of the classical package; a critic who abandons simplicity has changed the subject to a different doctrine of God, with its own costs (a composite God depends on his parts, and the parts call for an explanation beyond him). The intramural debate is real (Craig's hybrid view, open theism) and is mapped on Eternity (Divine) and Argument from the Creation of Time.

P3, God is causally present to every time, or it would not exist

Affirmative case

1. The sustaining doctrine (Monologion 14). Anselm's chapter title says it: the highest being "is in everything and through everything, and everything is from it and through it and in it." Creatures exist at all only because God immediately keeps them in being; they are an expression of the divine mind, sustained by God's thought. This is standard classical theism (Colossians 1:17, "in Him all things hold together"; Hebrews 1:3, "upholds all things by the word of His power") and the engine of Argument from the Continuance of Being.
2. The parallel with space (Monologion 20-22). The proof of God's omnipresence is that no place could exist without God present to it. Anselm runs exactly the same argument for time: no time could exist without God present to it. He is careful about the word "in": God is not contained by any place or time (transcendence), but He is causally present to every place and time (immanence). "It would seem better to say that He is 'with' place and time rather than 'in' place and time" (Monologion 22), and better to say He exists "always" (semper) than "in all time" (Monologion 24).

Anticipated objections

1. "Presentism: only the present exists, so God only needs to be present to the present. The past no longer needs sustaining and the future does not yet."

Rebuttals

1. Presentism has its own steep costs, and Anselm's alternative is at least as defensible. As Augustine already saw in Confessions 11, presentism shrinks reality to an extensionless point at which a nonexistent future becomes a nonexistent past. Rogers notes the four-dimensional picture is the one presupposed by every coherent time-travel story and the one that sits naturally with relativity, where simultaneity is frame-relative and no absolute cosmic "now" exists. Anselm's methodological point stands regardless: imaginative difficulty is not evidence. If eternity is a perfection and four-dimensionalism follows from eternity, the limits of the human imagination do not get a veto (Rogers 2006).

P4, Therefore all times are equally real and equally present to eternity

Affirmative case

1. The conclusion Anselm actually draws (De Concordia 1.5). "Although nothing is there [in eternity] but what is present, it is not a temporal present like ours, but an eternal present in which all times are contained. Just as the present time contains all place and whatever is in any place, in the same way the eternal present encloses all time and whatever exists in any time.... For eternity has its own unique simultaneity." Rogers's gloss: eternity functions like a further dimension enclosing all of spacetime, which is why she titles the position "eternity as the fifth dimension."
2. Things, not just propositions. Anselm consistently says the things and events themselves exist in and are present to divine eternity. God does not know your tomorrow by inspecting propositions about it or by reading His own intentions (Boethius's move); your tomorrow is there, and He sees it. Proslogion 19: "It is not that you existed yesterday and will exist tomorrow, but yesterday, today and tomorrow, you exist.... Nothing contains you, but you contain everything."
3. "Now" is indexical. What a temporal perceiver at time t calls "now" has no more ontological privilege than what a spatial perceiver at place p calls "here." This dissolves Prior's omniscience objection: there is no fact of "what time it really is now" for a timeless God to miss. God knows that t is now-for-you-at-t, and what that is like for you; that exhausts the facts.
4. The freedom-and-foreknowledge payoff. God knows today that you will choose x tomorrow, because your tomorrow is present to Him and He sees you choosing. The choice is the ultimately originating source of God's knowledge, so the only necessity in play is logical: necessarily, if you choose x, you choose x. Logical necessity is not causal determination, and it is self-imposed: it is you choosing x that makes it impossible that you not-choose x. Anselm holds full libertarian freedom (Libertarian Free Will); the eternal God's knowledge takes nothing from it. See Foreknowledge vs Causation for the general epistemic-vs-causal distinction this deploys.

Anticipated objections

1. "Then God's knowledge depends on creatures. Aquinas, Boethius, and Augustine all deny God can 'learn from' the world; divine aseity requires that God's knowledge derive from Himself alone."
2. "The contradiction charge: Anselm rejects temporal language for God, then helps himself to words like 'preceding' and 'present.'"
3. "If all times are equally real, creation is eternal and the universe never truly began; and Augustine's picture in City of God 12.18 (God existing without creation, then with it) becomes incoherent."
4. "Four-dimensionalism makes the future as fixed as the past, so freedom is an illusion regardless of God."

Rebuttals

1. Anselm accepts the cost deliberately, and the alternatives pay more. Rogers is explicit: Anselm recognizes his libertarianism forces this unpopular claim and accepts it because the denial (God's knowledge of free acts derives from God's own causal intentions) makes God the cause of every act including sin. The Thomist and Reformed traditions take the other horn and answer the authorship-of-sin problem with permission and decree distinctions (Compatibilism; Foreknowledge vs Causation maps the whole spread). This is a genuine intramural tension; present both sides and identify the price of each.
2. The temporal language is analogical bookkeeping, not doctrine. Anselm flags this himself: creaturely usage forces spatial and temporal idioms ("better to say He is 'with' time than 'in' time"). The doctrine is stated in the distinctions, not the idioms; a critic must find a contradiction in the claims, and the in-as-contained versus in-as-present-to distinction removes the one usually alleged.
3. Distinguish the timeline's internal beginning from a beginning "in" God's life. The four-dimensional block can itself have a first moment (creation, Genesis 1:1); what four-dimensionalism denies is that God's decision to create happened at some moment before that first moment. Augustine himself already taught that God created the world with time, not in time (Confessions 11), and that there is no "before" creation. The dependence of the whole block on God's free eternal act is untouched; contingency, not temporal ordering, carries the Creator-creature asymmetry. See Argument from the Creation of Time.
4. Fixity is not causation. The future's being there does not mean it is there independently of your choosing. On Anselm's picture your tomorrow contains your free choice because you freely make it; the block includes the choice as the free act it is. "Fixed" adds nothing beyond the logical truism that what happens, happens. If that truism destroyed freedom, freedom would be impossible on every theory of time, including presentism.

Live-cite kit

• Scripture: Isaiah 46:10 ("declaring the end from the beginning"); Psalm 139:16 ("in Your book were all written the days that were ordained for me, when as yet there was not one of them"); Revelation 1:8 ("who is and who was and who is to come"); Matthew 26:34 with John 13:19 (foretelling Peter's free denial so that "you may believe")
• Scholarly: Anselm, De Concordia 1.5; Monologion 14, 20-24; Proslogion 19-20; Katherin Rogers, "Anselm on Eternity as the Fifth Dimension" (Saint Anselm Journal 3.2, 2006); A. N. Prior, "The Formalities of Omniscience" (1962, the objection); Linda Zagzebski, The Dilemma of Freedom and Foreknowledge (1991, the objection)
• Aphorism: "God does not foresee your choice; He sees it. The 'fore' is your perspective, not His."

Master objections to the whole argument

1. "This is just the B-theory of time with a halo. If physics or metaphysics refutes the block universe, the doctrine falls." Reply: the argument runs from perfect-being theology to four-dimensionalism, not the reverse; physics is corroboration, not premise. Relativity's frame-relative simultaneity sits far more comfortably with Anselm than with presentism, but Anselm's case would stand in any physics, since it rests on what eternity and simplicity require.
2. "A timeless God cannot act, respond, love, or become incarnate." Reply: the author analogy carries the load (Eternity (Divine); Argument from the Creation of Time). One eternal act of will can have effects ordered at every point in time, including responses logically conditioned on creaturely acts (an eternally willed answer to a prayer offered at t). The Incarnation is the Word assuming a temporal human nature without the divine nature becoming temporal; the predicates apply in different respects.
3. "Boethius already said all this; Anselm adds nothing." Reply: Rogers's textual case is that Boethius and Augustine hedge ("as though present," quasi) and are plausibly presentists and compatibilists, with God knowing the future from His own intentions. Anselm removes the hedge (the things themselves exist in eternity), runs the space-time parallel explicitly, and pairs the doctrine with libertarian freedom. That combination is new, and it is what actually answers the modern objections.
4. "The doctrine proves too little: even if coherent, it gives no reason to believe in God." Reply: correct, and the page says so. The argument is defensive. Its role in the cumulative case is to defeat the claim that classical theism is incoherent on time, omniscience, and freedom; the positive work is done by Argument from the Creation of Time, Kalam Cosmological Argument, and the wider case.

Tactical opening / closing lines

Opening line: "When you say God can't know what time it is now, you're assuming your 'now' is cosmically special. Is your 'here' cosmically special too? Anselm asked that question nine hundred years before Einstein made it respectable."

Closing landing strip: "Anselm gives the Christian a picture where God's timelessness, God's detailed knowledge of your life, and your real freedom all hold together at once: every moment is present to the Creator who sustains it, and your free choices are among the things He eternally sees. The objector has to show a contradiction in that picture, and after nine centuries of trying, the objections keep turning out to assume the very presentism Anselm rejected."

Tensions

• Anselm vs Aquinas, Boethius, and Augustine on the source of God's knowledge. Anselm lets free creaturely acts be the originating source of God's (eternal, unchanging) knowledge of them; the mainstream classical tradition holds God's knowledge derives from His own essence and causality alone. Each side pays a price: Anselm strains simplicity-friendly accounts of aseity; the mainstream strains libertarian freedom and must answer the authorship-of-sin charge. Recorded, not adjudicated; see Foreknowledge vs Causation and Compatibilism.
• Anselm's libertarianism vs Reformed compatibilism. The codex maps the spread at Compatibilism, Libertarian Free Will, and Calvinism vs Arminianism vs Molinism vs Open Theism.

See also

• Eternity (Divine), the doctrine this argument defends; Boethius, Aquinas, and Lewis articulations
• Argument from the Creation of Time, sibling argument: from time's createdness to God's timeless existence
• Foreknowledge vs Causation, the epistemic-vs-causal distinction the freedom answer deploys
• Anselm, the person page: ontological argument, Cur Deus Homo, and biography
• Modal Ontological Argument, the Proslogion's flagship argument and the perfect-being method
• Boethius, the predecessor whose eternal-now Anselm sharpened
• Libertarian Free Will, Compatibilism, Molinism, Open Theism, the freedom-and-foreknowledge spread
• Actus Purus, divine simplicity background for P2
• Argument from the Continuance of Being, the sustaining doctrine behind P3
• Arguments, master index