The Meaning of Union With Christ

The concept of union with Christ lies at the heart of Christian theology and is a subject I have been delving deeply into this past year. Few groups have articulated its significance as vividly as the Marrow Men, a circle of 18th Century Scottish theologians, including Thomas Boston. They were influenced by Edward Fisher’s The Marrow of Modern Divinity and championed the free offer of grace and the believer’s intimate, transformative connection with Jesus. For the Marrow Men, union with Christ was not a dry doctrine, but the very essence of salvation and the Christian life. For a fuller treatment of the Marrow Men, a good resource is Sinclair Ferguson’s The Whole Christ.

To grasp union with Christ, we begin with a simple yet profound truth: believers are “in Christ.” This New Testament phrase – woven through Paul’s letters and Jesus’ teachings – describes a spiritual bond that redefines who we are. The Marrow Men leaned on this rich, biblical imagery to bring this reality to life.

+ The Vine and the Branches (John 15:5) Jesus is the vine and we are the branches, drawing our spiritual reality from Him. Apart from Him, we can do nothing.

+ The Head and the Body (Ephesians 4:15-16) Christ is the head, directing and sustaining the church as His body, with every part united under His care.

+ The Bridegroom and the Bride (Ephesians 5:25-32) This tender love between Christ and His church mirrors the closeness of this union.

These pictures reveal that union with Christ is no mere legal transaction. It is a living, breathing relationship — organic, intimate, and life-giving. Through faith we are joined to Jesus, and in this union, we receive every blessing of salvation.

This union with Christ is a golden thread running through the gospel. Indeed, it is the gospel, the good news. Here is how this union shapes key aspects of our redemption:

Justification – When we are united with Christ, His righteousness becomes ours. On the cross, He took our sins; in exchange, we receive His perfect standing before God. Our acceptance isn’t earned — it’s a gift rooted in connection with Him.

Adoption – Union with Christ brings us into God’s family. As Jesus is the Son, we become sons and daughters, sharing His inheritance. We can cry “Abba, Father” (Romans 8:15) embraced by the same love that rests on Christ.

Sanctification – This union does not just declare us holy — it makes us holy. United to Christ’s resurrection life, we are empowered to die to sin and live for righteousness. The Marrow Men stressed that this growth in holiness flows naturally from our new identity, not from grit or guilt.

Union with Christ is the fountainhead of all spiritual blessing. It is the core of what it means to be saved.

The Marrow Men faced their share of critics back in the 18th Century and the same charges are laid against those who believe in salvation by grace alone today. They were charged with antinomianism – the notion that grace cancels out the need for obedience. After all, the critics said, if we are united with Christ and secure in His righteousness, why bother with God’s Law? The Marrow Men rightly answered their critics by insisting that union with Christ doesn’t erase the Law, it actually fulfills it.

Far from breeding lawlessness, this union with Christ ignites a desire to obey. When we taste Christ’s love and grace, we are changed from within. Obedience becomes a joyful response, not a grim duty or obligation. The Holy Spirit, working through our connection to Jesus, renews our hearts, aligning our wills with God’s will. This is the authentic path of holiness — not forced compliance but a life reshaped by love.

So, what does this mean practically? How does this truth help us live day to day. For one, it brings comfort in trials. Life can be brutal but union with Christ offers unshakable hope. If we are united to Him in His death, we will be united in His resurrection (Romans 6:5). No matter the storm, He is with us and we are secure in Him.

Secondly, it gives us assurance of salvation. Doubts may creep in, but union with Christ anchors our confidence. Our salvation rests on His finished work, not our shaky efforts. Because we are in Him, we can rest assured of God’s unchanging love.

Third, it gives us a motivation for holy living. Knowing we’re united to Christ stirs us to reflect His character. As we grasp our new identity — forgiven, adopted, empowered — we are driven to live for God’s glory, not out of fear but out of gratitude and joy.

Imagine a weary traveler, burdened by guilt and failure, suddenly finding themselves welcomed into a king’s family. That’s the daily reality of union with Christ – a truth that lifts us up and spurs us on.

As the Marrow Men rightly understood, union with Christ is the heartbeat of the gospel. It is the foundation of our salvation, the source of our growth and the comfort of our souls. This union invites us to marvel – that we, broken and unworthy, are bound to Jesus — forgiven in His death, alive in His life and destined for His glory. In a world of striving and doubt, this doctrine shines as a beacon of grace. To be in Christ is to be complete, secure and forever His. Let that truth sink in — and let it change everything.

Grief and the Christian Faith

Grief is an inescapable reality in a fallen world. The sting of loss — whether through broken relationships, death or shattered dreams — cuts deeply into the human soul. Yet, for the Christian, grief is not a solitary or hopeless journey. It is a journey walked under the sovereign hand of God, illuminated by the promises of Scripture< and sustained by the hope of Christ’s victory over sin and death.

The Bible does not shy away from the rawness of grief. From the anguished cries of Job (Job 3:11) to David’s lament over his fallen son (2 Samuel 18:33), Scripture acknowledges that sorrow is a natural response to loss. The Christian perspective begins with the foundational truth of the Fall: sin has fractured God’s good creation, bringing death and decay into the world (Genesis 3:17-19, Romans 5:12). Grief, then, 7is not an anomaly but a consequence of living in a world marred by sin. It is a reminder that things are not as they were meant to be.

Yet, this recognition does not leave us in despair. The Christian faith emphasizes that even in this brokenness, God remains sovereign. Nothing, not even the deepest pain, falls outside His Divine Purpose. In grief, we are invited to trust that God is working, even when His ways are inscrutable.

For the believer in Christ, grief is not borne alone. Psalm 34:18 assures us, “The Lord is near to the brokenhearted and saves the crushed in spirit.” This promise anchors the Christian’s understanding of suffering: God does not abandon His people in their sorrow but draws near to them. Jesus Himself, the Man of Sorrows (Isaiah 53:3) entered into human suffering, wept at the tomb of Lazarus (John 11:35) and bore our griefs on the cross (Isaish 53:4). In Christ, we find a High Priest who sympathizes with our weakness (Hebrews 4:15), offering comfort that is both divine and deeply personal.

Christian theology underscores that this comfort is not mere sentiment, but a reality rooted in God’s covenant faithfulness. He has promised never to leave or forsake his people (Deuteronomy 31:6, Hebrews 13:5). Even in the darkest valley, the Christian can echo David’s confidence: “You are with me; Your rod and Your staff, they comfort me” (Psalm 23:4).

While grief is real, it is not the final word. The Christian faith clings tenaciously to the hope of the resurrection and the making of a new Earth where death, sorrow and suffering will be no more. Paul writes in 1 Thessalonians 4:13 that believers “do not grieve as others who have no hope.” This does not mean that Christians avoid tears or suppress sorrow — Jesus Himself wept — but that their grief is tempered by the certainty of Christ’s triumph over death. Because Jesus rose from the grave, those who are united to Him by faith will also rise (1 Corinthians 15:20-22). Death has been defeated, and the day is coming when “He will wipe away every tear from their eyes” (Revelation 21:4) when the new heavens and earth are created for us.

This hope reshapes how we mourn. Loss is temporary; reunion is eternal. For the Christian, grieving is an act of waiting — waiting until the fulfillment of God’s promises will come to pass. The promises of removing the curse of sin and restoring creation to how it should be.

Grieving as a Christian involves both lament and trust. Lament is not a sign of weak faith, but a biblical response to pain. The Psalms are filled with cries of anguish – “How long O Lord?” (Psalm 13:1) – that model honest wrestling before God. We are free to pour out our hearts, knowing that He hears and cares. At the same time, trust in God’s sovereignty and goodness steadies us. Romans 8:28 assures us that “for those who love God all things work together for good.” This does not erase pain but reframes it within God’s redemptive plan.

Practically this might mean weeping over a loved one’s death while clinging to the promise of eternal life. It might mean wrestling with unanswered questions while resting in the truth that God’s wisdom surpasses our own (Isaiah 55:8-9). It is a posture of humility, acknowledging our limits and God’s infinite goodness.

Finally, the Christian faith emphasizes that grief is not meant to be endured alone. The church, as the body of Christ, is called to “weep with those who weep (Romans 12:15). Fellowship with other believers provides tangible support – prayers, meals or simply a listening ear. Moreover, God has given us the means of grace – Scripture, prayer and the sacraments – to sustain us in sorrow. The Word reminds us of God’s promises, prayer draws us into His presence, and Communion offers a foretaste of the heavenly banquet where all tears will cease.

Grieving as a Christian is a paradox. It is sorrow mingled with hope; lament tempered by trust. We mourn deeply because we love deeply, yet we lift our eyes to the One who hold all things in His hands. In the end, our grief is not the end. Christ is risen, God is Sovereign, and the day of restoration draws near. Until then, we grieve as those who belong to Him, resting in His unfailing love and looking forward to the dawn when mourning will give way to everlasting joy.