Theological term
Pure Act
6 sermons · All terms
CTF 2025 - Session 3 - Exploring God’s Impassibility
God's immutability and impassibility, confessed in 1689 LBCF 2.1 as foundational divine attributes, are not cold abstractions but the very ground of the gospel's freeness and the perfection of God's love. This session from a Reformed theology conference works through the classical theistic framework: because God is pure act, wholly self-sufficient in being, he cannot undergo change or be moved to new states of affection by creatures. Counterintuitively, this means God's love is not diminished but infinitely surpassed by passionate human love — for an impassible love is uncaused, unbounded, and purely beneficent, making sola gratia coherent and certain.
The Ministry in Lystra
Acts 14:8–18 presents Paul and Barnabas in Lystra, where the healing of a man crippled from birth provokes the surrounding pagans to identify the apostles as Zeus and Hermes come in human form. Paul's corrective address to the Lystrans teaches the non-divinity of creatures and, by implication, the sharp ontological distinction between the living God and all that he has made. The study moves from the healing account into a substantial exposition of divine impassibility and simplicity, grounding those doctrines in the phrase 'of like passions' and tracing them through the confession, Scripture, and the Reformed theological tradition.
Sunday School Confession Study - 2LCF 2.2
God's external relations to the created order — his independence, omniscience, holiness, and the creature's obligation to him — are the subject of 2LCF Chapter 2, Paragraph 2. The confession's insistence that God is entirely self-sufficient and derives no glory from creatures corrects any notion that God created the world out of need or incompleteness. The omniscience of God is infinite, infallible, and independent of the creature, so that nothing is contingent or uncertain to him. The study closes by grounding the creature's obligation of worship, service, and obedience in what God is — holy in all his counsels, works, and commands.
Divine Impassibility (2LCF 2.1)
Divine impassibility — the classical Christian teaching that God does not undergo inner emotional changes of state, whether from without by his creatures or from within by himself — is the subject of this exposition of 2nd London Baptist Confession chapter 2, paragraph 1. The confession's phrase 'without passions' is shown to be an entailment of divine immutability, simplicity, and aseity: a God who could be moved, excited, or disturbed would be neither most absolute nor self-sufficient. Biblical texts establishing divine immutability ground the argument, while the phenomenon of anthropopathism in Scripture (God 'grieved in his heart,' God 'crying out like a woman in labor') is explained through the category of revelatory condescension — God lisping, as it were, to finite creatures — not as evidence of genuine emotional change in the divine being. The doctrine is shown to yield concrete pastoral fruit: it protects the uniqueness of the incarnation, grounds the believer's comfort in a God who is most loving without ebb or flow, and fuels doxology.
Divine Simplicity 2 - Of God and the Holy Trinity (2LCF 2.1-3)
What does it mean to say God is 'without parts,' and why does it matter for every other divine attribute? This second session on divine simplicity (2LCF 2.1–3) continues an expository study of the Second London Baptist Confession's opening chapter on God, working through the classical doctrine that God is not composed of physical, metaphysical, or logical parts — a doctrine historically attested from the church fathers through the Reformation and represented in every major Reformed confession. The session focuses especially on God's pure actuality (the denial of act-and-potency composition), the inseparability of God as knower, knowing, and things known, and the impossibility of God being both agent and patient — showing that divine simplicity is the ontological foundation for God's immutability, independence, absoluteness, unity, and infinite love.
Divine Simplicity - Of God and the Holy Trinity (2LCF 2.1-3)
Divine simplicity — the classical doctrine that God has no parts, no composition whatsoever, and that all that is in God is God — is examined through its confessional, definitional, historical, and doctrinal dimensions. The 1689 London Baptist Confession's phrase 'without body, parts, or passions' serves as the entry point, with 'without parts' identified as the direct expression of divine simplicity. The doctrine is shown to be the ontological foundation for God's aseity, infinity, immutability, and the unity of his attributes, and is traced through an unbroken stream of witnesses from Irenaeus and Augustine through Aquinas, the Reformers, and the Reformed scholastics. Hearers are pressed to resist any conception of God as a composite being whose attributes are properties inhering in a subject, and to affirm instead that God is identical with his own essence, being, and every perfection predicated of him.