One Lord, One Faith: Shared Allegiance to Christ

Devotional

Day 1: The Immediate Response to Christ's Call

The call of Jesus is not an invitation to consider but a command to follow. It demands a response that is both immediate and complete, leaving behind the old life to embrace the new. This kind of obedience is not born of obligation but of a recognition of His supreme authority. It is the starting point of a life lived under one Lord. [01:53]

And he said to them, “Follow me, and I will make you fishers of men.” Immediately they left their nets and followed him.
Matthew 4:19-20 (ESV)

Reflection: What is one thing in your life that you have been hesitant to leave behind in order to follow Jesus more completely? What would it look like to release that to Him today?

Day 2: The Unchanging Supremacy of One Lord

Jesus Christ is the supreme, sovereign ruler, the master of all. His lordship is not one option among many but the exclusive claim upon every believer's life. This truth is unchanging, the same yesterday, today, and forever. Our allegiance is to be undivided, with no rival claims to our ultimate loyalty and devotion. [49:57]

...one Lord, one faith, one baptism...
Ephesians 4:5 (ESV)

Reflection: Where do you see the greatest competition for your ultimate allegiance—is it your schedule, your finances, or the approval of others? How can you practically reaffirm Christ's lordship in that area this week?

Day 3: Contending for the One Faith

The Christian faith is built upon a shared, unchanging body of truth delivered once for all. This is not a personal interpretation but the apostolic witness to Christ. We are called to guard this truth, to contend for it energetically, and to align our lives to its unchanging standard, resisting any teaching that would distort its core. [01:12:46]

Beloved, although I was very eager to write to you about our common salvation, I found it necessary to write to you appealing that you contend for the faith that was once for all delivered to the saints.
Jude 1:3 (ESV)

Reflection: In a culture that often presents truth as relative, which core doctrine of the faith do you feel the need to understand more deeply to stand firm?

Day 4: The Cost of Wholehearted Allegiance

A life of true discipleship is characterized by a non-negotiable obedience that often comes at a cost. History is filled with witnesses who valued Christ above safety, reputation, and even life itself. This is not mere admiration of Jesus but a willingness to surrender everything for the sake of knowing Him and making Him known. [01:04:39]

Why do you call me ‘Lord, Lord,’ and not do what I tell you?
Luke 6:46 (ESV)

Reflection: Is your relationship with Jesus based more on admiration or on obedience? What is one step of obedience He is asking of you that would require a deeper level of trust?

Day 5: Finding True Freedom in Surrender

The world offers a frantic pace and countless voices vying for our attention, leading to bondage. True freedom and rest are found in stepping off that merry-go-round and into a life of surrendered intimacy with Christ. He alone is our treasure, our rest, and our source of joy, far surpassing any earthly pleasure or temporary comfort. [59:57]

Come to me, all who labor and are heavy laden, and I will give you rest. Take my yoke upon you, and learn from me, for I am gentle and lowly in heart, and you will find rest for your souls.
Matthew 11:28-29 (ESV)

Reflection: What does the "merry-go-round" of a busy life look like for you, and what would it practically mean to get off of it in order to create more space for Christ?

Sermon Summary

Paul’s letter in Ephesians four anchors a compact, urgent summons to spiritual unity: one body, one Spirit, one hope, one Lord, and one faith. The first three oneness realities receive a concise review—believers enter one body by the Holy Spirit, receive a shared hope rooted in the cross and the Spirit’s indwelling, and are called out of spiritual infancy toward maturity. The oneness theme then shifts to two crucial pillars: one Lord and one faith. One Lord demands a single, public allegiance to Christ as sovereign Master; any rival loyalties—time, ideology, or the hunger for approval—fracture that allegiance and hollow out obedience. True lordship issues in nonnegotiable obedience, daily dependence on the Spirit, and a life that gets off the cultural merry-go-round to breathe and pursue intimacy with Christ.

One faith requires a common content: apostolic witness, historic confession, and guarded doctrine. The apostolic testimony carries authority because eyewitness testimony anchors what Christians confess about Christ, the cross, and salvation. Weakening core doctrines—Trinity, incarnation, substitutionary atonement—softens Christ’s lordship, turns the cross into mere inspiration, substitutes strategy for Spirit, and leaves the church vulnerable to every passing ideology. Contending for the faith involves intentional struggle: test every thought, take it captive to Scripture, and prioritize doctrinal clarity over cultural approval.

Historical witnesses underline the cost and clarity of this oneness. William Tyndale’s translation work and martyrdom, and Lady Jane Grey’s youthful refusal to recant, illustrate that one Lord and one faith demand courageous fidelity and a willingness to suffer rather than dilute the gospel. The letter closes with a pastoral challenge to reorder schedules, finances, and affections so that allegiance to Christ becomes visible and contagious. The exhortation remains practical: cultivate doctrinal conviction, resist cultural relativism, and let the Spirit shape a church marked by shared confession and obedient unity.

Key Takeaways

1. One shared faithful allegiance A single Lordship requires believers to bind every part of life—time, money, hobbies, and work—to Christ’s authority rather than to competing idols. This allegiance reshapes daily choices so that obedience, not mere admiration, becomes the measure of discipleship. It calls for concrete reordering: calendars, priorities, and family rhythms must display Christ’s supremacy. [49:03]
2. No rival allegiances permitted Rival loyalties—identity projects, secular ideologies, or the need for human approval—erode spiritual vitality by displacing dependence on the Spirit. Recognizing these rivals permits targeted repentance and practical limits (phones, schedules, social platforms) that clarify what truly rules the heart. This discipline cultivates freedom: less fragmentation, more single-minded pursuit of Christ. [52:19]
3. Contend for apostolic gospel truth The faith stands on apostolic eyewitness testimony and historic confession; guarding that content resists cultural reinterpretation that hollow out salvation. Contending means wresting with false ideas, not merely arguing—taking thoughts captive to Scripture so identity and mission remain tethered to revealed truth. Firm doctrine anchors the Spirit’s power and preserves gospel clarity for the next generation. [65:37]
4. Faithful witness costs earthly comforts Tyndale and Jane Gray model that fidelity can demand loss, exile, or death—yet such cost confirms the gospel’s gravity and treasure. A willingness to suffer rather than compromise dignifies the church’s confession and testifies to an incomparable hope. This realism moves devotion from sentimental admiration to costly allegiance. [60:15]

Youtube Chapters

[00:00] - Welcome
[01:34] - Opening Scripture: Calling the First Disciples
[02:38] - Introduction: One Lord, One Faith
[28:24] - Ephesians 4: Reading and Charge
[29:49] - Review: One Body, One Spirit, One Hope
[34:27] - Dangers of Relativism and Fragmentation
[49:03] - One Lord: Shared Faithful Allegiance
[52:19] - Rival Allegiances and Obedience
[60:15] - William Tyndale: Cost of Conviction
[65:37] - One Faith: Apostolic Witness and Doctrine
[86:10] - Lady Jane Grey: Young Faithful Witness
[91:07] - Closing Prayer and Exhortation

Bible Study Guide

Bible reading
Ephesians 4:4–6 (ESV)
There is one body and one Spirit—just as you were called to the one hope that belongs to your call—one Lord, one faith, one baptism, one God and Father of all, who is over all and through all and in all.

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Observation questions

According to Ephesians 4:4–6, what are the seven "ones" that form the foundation of Christian unity?
In the sermon, what three aspects of the "one hope" were highlighted from last week’s teaching? [32:28]
What does the word "Lord" (Greek: *kyrios*) mean in its original context, and how does that shape our understanding of Jesus’ role? [49:57]
How did William Tyndale and Lady Jane Grey demonstrate their commitment to "one Lord" and "one faith" in their lives? [01:00:15] [01:26:10]

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Interpretation questions

Why is it significant that Paul uses the word "one" seven times in this passage? What does this repetition emphasize about the nature of the Christian faith?
The sermon mentioned that "authentic discipleship has always meant obedience to Christ, not admiration of him." [52:19] What is the difference between admiring Jesus and obeying Him?
How does weakening core doctrines (like the Trinity, incarnation, or substitutionary atonement) ultimately soften Christ’s lordship and the power of the gospel? [01:15:20]
Jude 3 urges believers to "contend for the faith." What does it look like to "contend" for biblical truth in a culture that often values relativism and tolerance over conviction? [01:12:46]

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Application questions

The message emphasized that we are to have "one shared faithful allegiance" to Christ with "no rival allegiances." [49:03] [51:34] What rival allegiances (time, ideologies, approval of others) currently compete for your heart’s loyalty?
How do your schedule, finances, and hobbies give evidence that Jesus is your Lord? [51:47] What is one practical change you can make this week to clarify Christ’s supremacy in your daily routine?
The sermon warned that the Holy Spirit’s power can be replaced by human strategy when doctrine is weakened. [01:19:49] In what areas of your life or church have you depended more on plans and programs than on prayer and the Spirit’s guidance?
William Tyndale and Lady Jane Grey valued God’s Word more than earthly comfort or safety. [01:00:15] [01:26:10] How can you cultivate a deeper love for Scripture and gospel truth in your own life?
It was said that we often want God to adjust to us rather than us adjusting to Him. [41:50] Where have you been asking God to accommodate your preferences rather than submitting to His authority?
How can you intentionally "take every thought captive" to Scripture when faced with competing cultural messages or ideologies? [01:14:17]
What would it look like for you to move from merely admiring Jesus to obeying Him in a specific area of struggle or hesitation? [52:19]

Sermon Clips

Can you imagine what our lives would be like if we held the Bible like we hold our phone? And that the word of God would be before us more than our phone. But we have so many rival allegiances today that we give our time under those things. As Christians and as Christian families, before anything else, are we orienting our lives? Are we making sure that our kids' lives are immersed in God's ways and connected to his bride? These are critical things. [00:53:10] (36 seconds) #BibleFirst

So all of us have this reality. Politics is not our Lord. Music's not our Lord. Economic stability is not our lord. Equality on people is not our lord. We have one lord, and it's Jesus. And he makes some pretty exclusive claims about being one lord. So we, therefore, are to be united in every kind of way under the lordship of Jesus. [00:50:07] (33 seconds) #JesusIsLord

We have no other lord, in case you haven't got the point yet, but Jesus. And we are not listen to this. We are not to allow ourselves to have any other kind of allegiance. And that rang the bell to make my point. We are to have none. No other allegiance. So let me ask a question I've been asking myself. Does our schedule, our schedule, your schedule, does our schedule with our kids' activities, Does our schedule with our church attendance priorities? Does our bank account? Does our time? Do our hobbies give evidence that Jesus Christ is our lord and we serve him only? We are to have no rival allegiances in our lives. [00:51:15] (60 seconds)

This has been our prayer, and we talk about this all the time at the church. The adjustment of our faith always is in not we humans who know we have issues. We all know that we have struggles. We all know that we wrestle things. So how crazy is it that at times, whether we admit it or not, we have attitudes of the heart that says, well, God, I want you to adjust to me. Instead of us coming and saying, I am so desperate for the truth of God that I'm willing at whatever cost to adjust my life to the truth of God and to walk in the reality of what he has set forth for me because in the truth, I find life. [00:41:13] (43 seconds)

the line about morality and the line about truth has been moved multiple times. And I used to teach this all the time as I was a youth minister that there was a line and students would always come to me and say, hey, Doak. How close to the line can I get without going over it? And I would always say to them, that's the wrong question. The question is how far from the line can I get? Because back here, there is security and safety by walking in the truth. [00:43:21] (34 seconds)

Here's the problem with ideologies, and our country is just littered with them. You need to just hear them all the time. Just turn on turn on the news. Well, just just as an experiment. Just that the news is just craziness today. But just listen and you'll hear ideology after ideology. Here's the problem with ideologies for the believer. Ideologies are attempts to explain meaning in life without keeping in mind the cross in Jesus. And there's no solution to an ideology. That's why Christianity is absolutely critical that we are living in such a way that we explain the meaning of the world in light of the cross. That's critical. [00:55:17] (43 seconds)

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