Theological term
Arianism
16 sermons · All terms
CTF 2025: What Are the Modern Day Issues With the Trinity?
Two ministers survey the modern doctrinal errors threatening a right understanding of the Trinity, contrasting them with the robust trinitarianism of the Second London Baptist Confession of Faith (1689 LBCF) Chapter 2. The discussion identifies the eternal subordination of the Son controversy, Arianism, Sabellianism, and social trinitarianism as recurring and contemporary departures from orthodox Trinitarian confession. Particular attention is given to the Confession's insistence on the one will and one operation of God, against models that fracture the divine unity by assigning separate wills or discrete percentages of action to each person.
CTF 2025 - What Are the Modern Day Issues With the Trinity?
This preview conversation addresses two recurring categories of Trinitarian error — subordinationism and social Trinitarianism — that the Classical Theism and the Faith 2025 conference will treat. The speakers ground their discussion in 1689 LBCF Chapter 2, particularly paragraph 3, arguing that the eternal Son is fully equal with the Father (contra eternal subordination of the Son), and that the divine persons share one will and one operation (contra social Trinitarianism and tritheism). The practical stakes are high: errors in Trinitarian theology distort both worship and social ethics, and confessional churches must arm their people with the historic biblical formulation.
The Testimony Concerning Christ
John 15:26–27 presents the Holy Spirit as both sent by the Son in a temporal mission and as one who eternally proceeds from the Father and the Son — the filioque. This sermon works through the distinction between God's eternal processions (theology proper) and his temporal missions (economy), arguing that the Western church's confession of the Spirit's double procession preserves both the consubstantiality and the personal distinction of the three persons of the Trinity. The apostolic witness of verse 27 is grounded in and empowered by that same Spirit, whose singular purpose in both the sending at Pentecost and the inscripturated Word is to testify of Christ — and that testimony calls sinners to receive eternal life by faith in him alone.
The Departure of Christ
John 14:28–31 presents Christ's departure not as cause for sorrow but as grounds for rejoicing, because it leads through the cross to his exaltation at the right hand of the Father. The sermon gives sustained attention to the clause 'my Father is greater than I,' defending Trinitarian orthodoxy against Arian misreading by deploying two hermeneutical guardrails: the consubstantiality of the divine persons (each having the whole divine essence undivided) and partitive exegesis (predicating statements of Christ according to whichever nature is in view). The Father is not greater than the Son in respect of the divine nature, but is greater with respect to the Son's assumed humanity and mediatorial office in the covenant of redemption. Believers are called to rejoice in Christ's departure, to stand in awe that the Spirit has been sent so they are not left as orphans, and to receive the peace Christ bequeaths as their stable foundation for mission.
CTF 2024 Session 4: The Uniting Power of our Reformed Confessions
The ecumenical creeds of the first five centuries — the Apostles' Creed, the Nicene Creed, the Chalcedonian Definition, and the Athanasian Creed — form the doctrinal bedrock upon which the Reformation confessions, including the Westminster Confession, the Savoy Declaration, and the Second London Confession of Faith, were deliberately built. This address traces the historical controversies (Arianism, Eutychianism, Monophysitism, Monothelitism) that provoked each creed, demonstrates the precise linguistic dependence of the 1689 LBCF upon creedal formulations, and argues that this shared inheritance constitutes genuine theological unity among confessional Reformed and Reformed Baptist churches. The practical conclusion is that ministers must teach these creeds and their underlying doctrines — Trinitarian theology, the hypostatic union — as the bedrock of Christian comfort, not merely as academic curiosity.
The Revelation of the Father
John 14:7–11 presents Christ's claim that knowledge of the Son is knowledge of the Father, and that the Father dwells in the Son and the Son in the Father — a claim no mere creature could make. The sermon works through three confirmations of this unity: the nature of the Son (his consubstantiality with the Father), the words of the Son (which are the Father's words by virtue of shared essence, not mere instrumentality), and the works of the Son (which the Father performs through the Son as one divine operation). The Trinitarian theology at stake is not speculative — it is the doctrinal ground upon which the disciples, and all believers, stand when the world collapses in on them, because the Son who is God of God, light of light, very God of very God, is the one who came down 'for us and for our salvation.'
The Danger of Rejecting the Son
John 8:21–29 records Jesus warning a hostile religious leadership that they will die in their sins if they do not believe that He is the great I Am — the divine Son eternally generated from the Father, sent into the world in the economy of redemption. The sermon works through the passage in three movements: the announcement of Christ's departure and the condemnation it implies, the question of His identity and the slander levelled against Him, and the reference to His crucifixion as the moment of disclosure. The central doctrinal burden is that a deficient Christology — whether ancient Arianism, Sabellianism, or modern proposals of eternal functional subordination — amounts to the very unbelief Christ condemns, and that the church's primary calling is to preach the triune God with particular weight on who the Son is and what He has done for sinners.
The Ministry of the Holy Spirit
What is the Holy Spirit's relationship to the Father and the Son, and why does it matter that Christians understand this precisely? Working through Ephesians 1:13–14 as the destination, this sermon first establishes the full personal divinity of the Holy Spirit by tracing his presence and activity across both Testaments — from creation in Genesis 1 through the baptism of Christ, Pentecost, and the apostolic letters — demonstrating that the Spirit is not a force or a lesser deity but the third person of the one undivided triune God. The sermon draws on the 1689 London Baptist Confession chapter 2 paragraph 3, the Nicene Creed, and a wide range of triadic New Testament texts to guard against the heresies of Sabellianism and Arianism. The congregation is called to pursue the knowledge of this triune God as the irreplaceable foundation of assurance, evangelism, and Christian perseverance.
Clip: Theology is crucial for every church and believer
Theology proper — the knowledge of who God is as Father, Son, and Holy Spirit — is not an academic luxury but the essential foundation of Christian life, worship, and witness. This sermon clip from an exposition of Ephesians 1:3–14 argues that the church's tendency to rush past doxological passages to practical ethics has left believers spiritually thin, prone to a mercenary relationship with God rather than one grounded in the infinite riches of his grace. The preacher calls the congregation to disciplined study of the Trinity, warning that without it believers become vulnerable to ancient heresies and lose the impetus to proclaim Christ to a lost world.
Genesis 48:1-22
Genesis 48 records Jacob's adoption of Joseph's two sons, Ephraim and Manasseh, as tribal heads within Israel, and his deliberate bestowal of the greater blessing on the younger Ephraim — a pattern running throughout Genesis that the covenant blessings are dispensed not by birth order but by sovereign divine election. The chapter's vocabulary of "firstborn" is examined in light of Colossians 1:15, demonstrating that the term denotes preeminence rather than creaturely origin, directly refuting the Arian Christology of Jehovah's Witnesses. Jacob's deathbed testimony — praising God who fed him all his life and whose Angel redeemed him from all evil — is held up as a model for how the people of God should rehearse divine faithfulness at the close of life.
The Importance of the Knowledge of Christ
The most important question ever asked — 'Who do you say that I am?' — exposes a crisis in the contemporary church: a Ligonier survey found that 78% of polled evangelical Christians answered that Jesus Christ is the highest creature of God, effectively the ancient Arian heresy. This sermon works through Matthew 16:13–20 as a launching point, pressing seven reasons why the knowledge of Christ is of supreme importance: He is the scope of Scripture, eternal life hinges on a right knowledge of His person, the gospel is about Him, He is the exclusive way of salvation, all redemptive benefits are found in Him, the church's commission is given by and about Him, and our present and future hope rests in Him alone. The practical import of Christology — rightly defined as the dignity of Christ's person and the virtue of His office — is shown to bear on worship, humility, beneficence, good works, and steadfast confession.
The Deity of Christ
Who is Jesus Christ, and what does Scripture mean when it confesses that He is God? This Bible study on John 1:14–18 opens a series on Christology by examining the deity of Christ from three angles: its precise meaning, the breadth of its biblical testimony, and the doctrinal affirmations necessary for confessing it rightly. The study moves from definitional clarity—ruling out Arian, adoptionist, and Mormon distortions—through exegetical survey of Christ's self-identification, apostolic statements, Old Testament Yahweh texts applied to Christ, and divine attributes predicated of Him, before concluding with four essential affirmations: His essential identity with the Father, His personal eternal distinction as the eternally begotten Son, His unchanging post-incarnation deity, and the specific role His divine nature plays in assuming, personalizing, and sustaining His human nature.
The Word Became Flesh
John 1:14 presents one of the most concentrated statements of Christology in all of Scripture: the eternal Word, who was God and was with God in the beginning, became flesh and tabernacled among men. This sermon expounds the incarnation under two heads — the fact of the Word becoming flesh, and the glory beheld in that incarnate Word — with sustained attention to the doctrine of eternal generation, the Shekinah-tabernacle background of John's prologue, and the covenantal purpose of the incarnation in redemption. The hearer is called to rest in the Christ who perfectly fulfilled the law, bore the wrath due to sinners in their stead, and rose for their justification, and to hold fast to a sound Christology as the very ground of salvation.
The Christian Doctrine of the Trinity
The Christian doctrine of the Trinity — one God eternally subsisting in three distinct persons, Father, Son, and Holy Spirit — is defined, defended against historic and contemporary errors, and displayed across the whole of Scripture. The sermon works through three movements: first defining the doctrine precisely (one in essence, three in person), then defending it against polytheism, Arianism, and modalism, and finally displaying its pervasive witness throughout both Testaments. The doctrine is shown to be not a cold theological abstraction but the very foundation of salvation, worship, and the believer's communion with the triune God.
The Superiority of Christ Over the Prophets
Hebrews 1:1–3 opens with a compressed Christological argument: God who spoke through the prophets of the old covenant has now spoken definitively and finally through His Son, and this Son is superior to every prophet in seven demonstrable ways. The sermon works through those seven evidences of Christ's supremacy — heir of all things, Creator, brightness of God's glory, express image of the Father's person, sovereign administrator, Savior, and exalted King — grounding each in the text and in supporting Scripture. Along the way it treats the unity of Scripture across the covenants, the cessation of new revelation, and the nature of the 'last days' as the present messianic era. The practical summons is to rest salvation entirely on Christ's finished work and to adore Him in His threefold office of prophet, priest, and king.
2LCF Chapter 2 - Of God and of the Holy Trinity
The doctrine of the Trinity — one God eternally existing in three distinct persons, Father, Son, and Holy Spirit, the same in substance and equal in power and glory — is not a peripheral curiosity but the beating heart of Christian confession. This sermon defines the doctrine precisely, distinguishes it from the ancient heresies of Arianism, polytheism, and modalism, and then marshals Old and New Testament evidence to demonstrate that the entire canon is Trinitarian to its core. The deity of the Son and the personality and deity of the Holy Spirit receive particular attention, since these are the contested points, and the sermon closes by showing that a right understanding of the Trinity grounds our communion with God, shapes our worship, and patterns our treatment of one another.