Self-sufficiency of God

“If I were hungry, I would not tell you, for the world is mine, and all it contains.”

— Psalm 50:12

Self-sufficiency, or all-sufficiency, is the doctrine that God has infinite fullness of life, glory, goodness, and blessedness in and of himself, so that he needs nothing outside himself to sustain his being or complete his happiness, while remaining sufficient to supply every need of the creatures he has made.¹ Scripture ties the doctrine to God’s own name, El Shaddai, “the all-sufficient God,” given to Abraham as the ground of his covenant promises (Gen. 17:1).¹ The claim is narrower than self-existence: that doctrine says God’s being is uncaused, while this one says his fullness needs no supplement from anything made.²

Confessional Witness

The Reformed confessional family states this attribute in nearly identical language across a century of documents. The Westminster Confession opens its description of God’s nature with it: “God hath all life, glory, goodness, blessedness, in and of himself; and is alone in and unto himself all-sufficient, not standing in need of any creatures which he hath made, nor deriving any glory from them, but only manifesting his own glory in, by, unto, and upon them: he is the alone fountain of all being, of whom, through whom, and to whom are all things.”³ The Savoy Declaration repeats the clause essentially word for word,⁴ as does the 1689 Second London Baptist Confession, which adds that whatever “worship, service, or obedience” creatures owe God, they owe as creatures to their Creator rather than as something he requires to complete himself.⁵ The Philadelphia Confession of Faith, the American Baptist adaptation of the 1689, states the same clause again in 1742.⁶ This is Reformed teaching generally, not a Baptist distinctive: four confessions across three traditions and a century open their doctrine of God with the same claim.

Biblical Basis

God gives Abraham his own name as the ground of the covenant: “I am God Almighty [El Shaddai]; walk before me, and be blameless” (Gen. 17:1). Van Mastricht reads the name itself as a claim of sufficiency: God is sufficient for himself, and sufficient “for his people,” from himself and not from any other source.¹ The Psalms make the same claim concrete. When Israel treats sacrifice as something God needs, the Lord answers, “I know all the birds of the hills, and all that moves in the field is mine. If I were hungry, I would not tell you, for the world is mine, and all it contains” (Ps. 50:11- 12).⁷ Job receives the same correction after questioning God: “Who has first given to me, that I should repay him? Whatever is under the whole heaven is mine” (Job 41:11), and his friend Eliphaz presses the point further: “Can a man be profitable to God? … Is it any pleasure to the Almighty if you are righteous?” (Job 22:2-3).⁸ Paul tells the philosophers at the Areopagus that the God who made the world “does not live in temples made by man, nor is he served by human hands, as though he needed anything, since he himself gives to all mankind life and breath and everything” (Acts 17:24-25).⁷ He closes his own survey of God’s dealings with Israel the same way: “Who has given a gift to him that he might be repaid? For from him and through him and to him are all things. To him be glory forever” (Rom. 11:35-36).

Historical Development

Reformed orthodoxy: a dedicated locus

Reformed scholastics treated all-sufficiency as its own attribute, distinct from but resting on independence and self-existence. Petrus van Mastricht devoted a full chapter of his doctrine of God to “The All-Sufficiency or Perfection of God,” built on Genesis 17:1. He mined the Hebrew Shaddai for three overlapping senses, rendered in Greek: God is exarkes, “fully sufficient,” having enough for himself in every way; panarkes, “all-sufficient,” having enough for all creatures in all things; and autarkes, “self-sufficient,” having this sufficiency from himself rather than from any other source.¹ John Gill likewise gave the doctrine its own chapter, “Of the Sufficiency and Perfection of God,” arranged in three parts: God is self-sufficient, needing nothing from outside himself; he is all-sufficient, having enough within himself to communicate to his creatures in nature, providence, and grace; and he is perfect, wanting nothing.⁸ Gill pressed the point furthest on worship: God “stands in no need of their prayers,” and their praises “add nothing to his perfection and happiness, but to the perfection and happiness of men, who are made better thereby.”⁸

Modern retrieval

Later Reformed dogmaticians folded all-sufficiency into the broader attribute of independence while preserving its distinct emphasis. Bavinck treats self-sufficiency as the narrower, existence-focused sense of aseity, from which the Reformed doctrine of independence later grew to cover God’s perfections, decrees, and works as well.² Contemporary writers have returned to the doctrine’s practical force. Sammons works through Job 41:11, Psalm 50, and Isaiah 40’s polemic against idols to argue that a God who needs nothing is also a God incomparable to anything he has made.⁹ Barrett traces the same claim through Melchizedek’s blessing of Abraham, Israel’s sacrifices, and Paul at the Areopagus, concluding that God’s covenant promises rest on a self-sufficiency that owes nothing to those he promises to bless.⁷ Parkison argues that because God’s all-sufficiency makes creation strictly unnecessary to him, creation itself is best described in the philosophical sense as “accidental” rather than “essential”: it need not have existed at all, and its ceasing to exist would not diminish God’s own fullness.¹⁰

Opposing Views

Process theology denies God’s self-sufficiency directly, teaching that God is genuinely enriched by his creatures rather than sufficient without them. Process theologian Charles Hartshorne defined true religion as “serving God… contributing value to God which he would otherwise lack,” and taught that God takes creaturely acts into himself and becomes “increasingly better as a result,” so that God is “in process” rather than complete in himself.¹¹ Sammons judges this flatly incompatible with Paul’s declaration in Athens that God is not “served by human hands, as though he needed anything” (Acts 17:25).⁹ Reformed theology holds instead that creatures can add nothing to God’s own perfection and happiness, only acknowledge and display a glory he already possesses in full.⁸

Objections and Responses

If God needs nothing from his creatures, why does Scripture command worship, obedience, and sacrifice, and why does it describe God as pleased by them? Reformed theology distinguishes God’s essential glory, which is complete and unchangeable in itself, from his manifestative or declarative glory, which creatures display but do not supply. Gill argues that when the heavens declare God’s glory, “it is… to angels and men, that they may contemplate it, and receive benefit by it,” not to God, “who needs no such declaration; he knows perfectly his own glory.”⁸ Berkhof makes the same point against the idea that creation was needed to add to God’s glory: God pursues his declarative glory in creation “the way… the artist… follows the spontaneous impulse of his genius,” not the way a laborer works to supply a want, and creatures glorifying God “add nothing to the perfection of His being, but only acknowledge His greatness.”¹² Worship, prayer, and obedience remain genuine duties, but their benefit runs from God to the worshiper, not the reverse.⁸

Doesn’t calling God “all-sufficient” undercut the point of prayer, since a God who needs nothing might also be a God unmoved to give anything? Reformed theology draws the opposite conclusion. Mastricht’s own practical use of the doctrine is to ground confidence in prayer: because God is sufficient “not only for himself, but also for us,” believers in need are told to “frequently call upon that all-sufficiency in [their] prayers.”¹ Sammons makes the same move from doctrine to practice: praying “give us this day our daily bread” is itself an acknowledgment that God “has such an abundance of sufficiency that he is not hindered, limited, or drained of resources in order to be the supplier of all of our needs.”⁹ God’s self-sufficiency is not indifference; it is the reason his supply of his people never runs short.

Related Doctrines

References

Petrus van Mastricht, Theoretical-Practical Theology, vol. 2, Faith in the Triune God, ed. Joel R. Beeke, trans. Todd M. Rester (Grand Rapids: Reformation Heritage Books, 2019), chap. 21, “The All-Sufficiency or Perfection of God,” 494-509. ↩ ↩² ↩³ ↩⁴ ↩⁵
Herman Bavinck, Reformed Dogmatics: Abridged in One Volume, ed. John Bolt (Grand Rapids: Baker Academic, 2011), chap. 8, “The Living, Acting God,” “Aseity/Independence.” ↩ ↩²
The Westminster Confession of Faith (1646), chap. 2, “Of God, and of the Holy Trinity,” para. 2. ↩
The Savoy Declaration (1658), chap. 2, “Of God, and of the Holy Trinity,” para. 2. ↩
The Second London Baptist Confession of Faith (1677), chap. 2, “Of God, and of the Holy Trinity,” para. 2. ↩
The Philadelphia Confession of Faith (1742), chap. 2, “Of God, and of the Holy Trinity,” para. 2. ↩
Matthew Barrett, None Greater: The Undomesticated Attributes of God (Grand Rapids: Baker Books, 2019), chap. 4, “Does God Depend on You? Aseity.” ↩ ↩² ↩³
John Gill, A Body of Doctrinal Divinity; or, A System of Evangelical Truths, Deduced from the Sacred Scriptures, 2 vols. (London: Printed for the Author, and Sold by George Keith, 1769), book I, chap. 24, “Of the Sufficiency and Perfection of God.” ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶
Peter Sammons, The Forgotten Attributes of God: God’s Nature and Why It Matters (Fort Washington, PA: CLC Publications, 2023), chap. 3, “Aseity,” 58-74. ↩ ↩² ↩³
Samuel G. Parkison, The Fountain of Life: Contemplating the Aseity of God, ed. Matthew Barrett, Contemplating God (Wheaton, IL: Crossway, 2026), chap. 2, “Creation’s Independent Creator,” 19-27. ↩
Charles Hartshorne, quoted in Sammons, chap. 3, “Aseity,” 68. ↩
Louis Berkhof, Systematic Theology (London: Banner of Truth Trust, 1969), Part One, “The Doctrine of God.” ↩