Theological term
Covenant Theology
136 sermons · All terms
A Psalm of Comfort
Psalm 46 presents God as the impenetrable refuge and omnipotent strength of his covenant people — not by promising a trial-free life, but by declaring that the Divine Warrior and God of Jacob remains sovereign over every earthly catastrophe, political upheaval, and spiritual assault. The sermon traces four movements in the psalm: a statement of God's character to comfort, a contrast between earthly chaos and divine sovereignty to instruct, an invitation to behold God's works, and a command to be still and know that he is God. The practical summons is to resist paralysis and fear by cultivating theology proper — studying the character of God — because a revelation of God's character and glory is the best remedy for any trial.
The New Covenant
Jeremiah 31:31–34 contains the Old Testament's sole explicit use of the phrase 'new covenant,' and this sermon expounds its announcement, essential features, and fulfillment in Christ. Against the backdrop of Judah's covenant-breaking idolatry, God promises a covenant that is unbreakable, one that internalizes his moral law, grants saving knowledge of himself, and secures the definitive forgiveness of sin. The Hebrews quotation of Jeremiah 31 and Christ's own words at the Last Supper confirm that this covenant finds its ratification in the blood of Jesus, the surety and mediator of a better covenant. The sermon closes by drawing out the Reformed Baptist implication that new covenant membership — marked uniformly by regeneration, law-internalization, knowledge of God, and forgiveness — necessarily implies believers' baptism, and by calling the unconverted to seek that fountain open for sin and uncleanness.
The Old Testament and Jesus: Specific Warnings
Matthew 5:19–20 presents two specific warnings that frame Christ's exposition of the law in the Sermon on the Mount: a warning against antinomianism and a warning against legalism. Both errors, though apparently opposite, share a common root — a contempt for God's law as he actually gave it, whether by subtracting from it or by supplementing it with human tradition. The sermon argues that the righteousness required for entrance into the kingdom of heaven is not produced by moral effort nor excused by doctrinal sleight of hand, but is found only in Christ, whose imputed righteousness is received through faith alone.
The Whole Armor of God
Ephesians 6:10–20 closes Paul's letter with a summons to active, armored vigilance in the Christian life. Working through the command to stand, the reason rooted in the reality of spiritual warfare against unseen principalities and powers, and the specific pieces of armor Paul describes, this exposition insists that the believer's strength is entirely derivative — drawn from Christ who is already enthroned far above all powers (Ephesians 1:20–23). Each element of the armor — truth, imputed righteousness, the gospel of peace, faith, salvation, and the sword of the Spirit — directs the Christian away from self-sufficiency and back to Christ, whose finished work at Calvary is the only ground on which any saint can stand or withstand in the evil day.
Gospel Liberty and the Law of Love
Gospel liberty, rightly understood, is not freedom from responsibility but freedom for the service of God and neighbour. Expounding Galatians 5:13–15, this sermon argues that Paul is no antinomian: believers called to liberty are simultaneously called to fulfil the moral law through love, and the gospel of free justification is the very source of genuine sanctification, not its enemy. Four theological implications of Paul's appeal to Leviticus 19:18 are drawn out — Paul's rejection of antinomianism, the threefold distinction in the law, the continuity of the moral law from creation through Sinai into the new covenant, and the complementary rather than antithetical relationship of Spirit and law — before the sermon closes with a sober warning that biting and devouring within the church betrays a failure of gospel-wrought love. The congregation is exhorted to pursue loving service of one another as the God-appointed antidote to both legalism and licentiousness.
The Focus of Matthew's Gospel
Matthew 1:1 is far more than a title line — it is the theological and covenantal framework for the entire Gospel, announcing in three compressed titles that the long-awaited Messiah has arrived. The sermon works through each designation — Jesus Christ, Son of David, Son of Abraham — as three spotlights illuminating his messianic office, his Davidic kingship, and his role as the fulfillment of the Abrahamic covenant promise to bless all nations. Introductory matters concerning the author, audience, dating, structure, and purpose of Matthew's Gospel are treated before the exposition of verse one. The sermon closes by calling both believers and unbelievers to behold Jesus as Messiah, King, and surety of the covenant, and to ground their confidence in God's demonstrated faithfulness.
Hagar, Sarah, and Covenant Theology
Galatians 4:21–31 presents Paul's allegorical argument from the two sons of Abraham — Ishmael and Isaac, Hagar and Sarah — to demonstrate that faith and law-keeping are mutually exclusive systems of approach to God. Paul maps Hagar onto the Mosaic covenant, first-century apostate Jerusalem, and the bondage of those who seek acceptance with God through legal works; he maps Sarah onto the covenant of grace, the heavenly Jerusalem, and the freedom of those who are justified by faith alone in Christ alone. New covenant membership belongs not to ethnic Israel as such, but to all — Jew and Gentile — who are united to Christ by sovereign grace, making them heirs of the promise given to Abraham. The sermon closes with a call to recognise false teaching as a form of persecution and to exercise church discipline against those who corrupt the gospel of free justification.
Theology and the Martyrdom of Stephen
Acts 7:51–8:4, the martyrdom of Stephen, yields five distinct theological loci for examination: prophecy, the Trinity, covenant theology, hamartiology, and soteriology. The sermon traces how Jesus's words in Matthew 23, 24, 26, and 16 are precisely fulfilled in Stephen's trial, death, and the church's subsequent scattering, vindicating the veracity of Scripture. The doctrine of total depravity is pressed hard against the stiff-necked resistance of Stephen's murderers, while the conversion of Saul — the consenting bystander who becomes the church's greatest herald — is offered as the premier exhibit of irresistible, effectual grace. The hearer is called to love the Word that predicts and fulfils, to glory in the triune God who sustained Stephen, and — if unconverted — to bend the knee to the same Christ Stephen gazed upon at the moment of his death.
The Priority of the Promise
The Abrahamic promise has absolute priority over the Mosaic law, and no subsequent covenant — not even the law given 430 years later — can annul, supplement, or condition what God confirmed in Christ before Moses ever appeared. Drawing on Galatians 3:15–18, this exposition works through Paul's human analogy of an irrevocable covenant, the identification of Christ as the singular seed in whom the promise is secured, and the mutually exclusive relationship between law and grace as grounds of inheritance. The practical weight falls on assurance: because the covenant of grace was made with Christ as its guarantor, neither Judaizing additions nor personal failure can undo what God has sovereignly sworn to fulfil for all who are in Christ.
The Foundation of Christian Baptism
The death of Christ is the foundation of Christian baptism — not water's mystical power, not human merit, but the overwhelming of the Son of God under the wrath of God in the place of sinners. Expounding Mark 10:35–45, this sermon argues that Jesus' reference to his own imminent 'baptism' is a direct anticipation of his atoning death under divine wrath, which is the basis on which believers' baptism derives its meaning. Baptism is then shown to be an ordinance that portrays — not provides — union with Christ in his death, burial, and resurrection, the forgiveness of sins, and the call to walk in newness of life. The hearers are pressed to examine not their view of the mode or subject of baptism, but their personal saving interest in the doing and dying of the Lord Jesus Christ.
Vain Glory, True Glory, and the Glory of the Cross
Jeremiah 9:23–24 sets a divine exhortation against three forms of vainglory — glorying in wisdom, might, and riches — within a context of covenant judgment falling on Judah at the approach of Babylon. The sermon works through each prohibition in turn, applies them to contemporary forms of self-trust (including a proud Calvinism), and then unfolds the threefold character of the God in whom alone glory is rightly placed: his lovingkindness, his judgment, and his righteousness. All three divine perfections converge at the cross of Christ, where loving-kindness, penal judgment, and righteousness are displayed together, so that any legitimate boasting must finally be a boasting in the crucified and risen Redeemer.
Simeon and God's Salvation
The account of Simeon in Luke 2:25–35 presents a model of genuine biblical piety — a man who was just toward men and devout toward God because he was first rightly related to God by grace through faith in the promised Messiah. The sermon traces three features of Simeon's life: his character (just and devout), his conduct (waiting and worshiping in anticipation of the consolation of Israel), and his fourfold confession when he holds the infant Christ (the truth of God's word, the glory of God's salvation, the comprehensive mission of Christ to Jew and Gentile, and a prophetic word of sorrow to Mary). Listeners are called to examine whether their own character, conduct, and confession mirror Simeon's — living now in watchful, holy expectation of Christ's return, knowing that the only preparation for death is faith in the Lord Jesus Christ.
The New Covenant
Jeremiah 31:31–34 announces a new covenant that surpasses every prior administration of the covenant of grace — Adamic, Noahic, Abrahamic, Mosaic, and Davidic — by guaranteeing what none of them could: an inviolable covenant secured not by human fidelity but by the covenant head, the Lord Jesus Christ. Four defining features mark the new covenant as genuinely new: the inviolability of its bond, the internalization of God's law upon the heart, the saving knowledge of God granted to every member, and the full and permanent forgiveness of sins. Against Federal Vision teaching, the sermon insists that new covenant membership is coextensive with salvation — those who fall away demonstrate they were never true members. Entry into this covenant is by grace alone, through faith alone, in Christ alone, who ratifies it in his own blood as the surety of a better covenant.
The World According to Haggai
Haggai 2:10–23 confronts a people whose neglect of God's house exposed a deeper failure: they had made comfort and self-interest primary while relegating God to an afterthought. The sermon traces two movements in the text — a promise of blessing conditioned on restored covenant faithfulness (vv. 10–19), and a messianic announcement centering on Zerubbabel as an ancestor of Christ (vv. 20–23). Defilement, unlike holiness, is contagious, and the unbuilt temple was not merely a construction failure but a declaration that God was an unwanted resident. The governing application, drawn from Matthew 6:33, is the imperative to seek first the kingdom of God and his righteousness in every domain of life — worship, work, evangelism, and devotion.
The Redemptive Act of God
Colossians 2:13–15 sets out four distinct facets of God's one redemptive act accomplished through Christ: regeneration of the spiritually dead, forgiveness of all trespasses, cancellation of the debt of law-breaking, and disarming of demonic principalities and powers at the cross. The totality of this divine work leaves no room for human supplement — not asceticism, not mysticism, not legalism — because God in Christ has secured the salvation of his elect entirely and irrevocably. The sermon presses believers toward grounding their daily assurance not in personal performance but in these objective acts of God recorded in Scripture.
The Nature of Redemption
Galatians 3:10–14 presents redemption as covenantal, instantaneous, complete, and secure — four properties the apostle Paul grounds not in the believer's performance but in Christ's atoning work at Calvary. The sermon traces the Abrahamic promise through the whole Bible to show that Gentile believers are not a divine afterthought but the planned heirs of a covenant stretching from Genesis to the gift of the Spirit. Assurance of salvation belongs to justification, not sanctification, so that a believer's peace with God rests on Christ's cross-work rather than personal obedience. Three closing applications address the lawful use of the law for the believer, the biblical doctrine of cessationism, and the duty to preach the law faithfully to unconverted sinners.