The Holy Calling of Discipleship

Mark 9:42-50 May 16, 2021 Pastor Tom Wilkins
Thesis Jesus calls his disciples to radical holiness and humble mission, warning them that causing others to stumble or persisting in unrepentant sin brings God's wrath, while promising that suffering for his sake will purify them into preserving, peaceful witnesses who exalt Christ.
Series
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Type
Expository
Tone
pastoralpropheticdidactic
Method
grammatical-historicalapplicatory
What's in this sermon

The shape of the argument

36 units across exposition, application, illustration, theological claim, and conclusion. The pastor's argument is built from these moving parts.

Pastoral correction · unit #13
"Tom applies the warning concretely: examine whether we are leading new believers into legalism, license, controversy (especially over COVID), or other ungodly distractions. He calls the congregation to self-examination of their speech, social media, and interactions with young believers."
Doctrinal loci· 6 surfaced
Christology · 9 Sanctification · 8 Pastoral Theology · 3 Providence / Sovereignty · 3 Ethics / Moral Theology · 2 Doxology / Worship · 1
Bible citations· 13
Mark 9:3 | Mark 9:42 | 1 Timothy 3:3-5 | Mark 9:43-48 | Mark 9:48 | Romans 6:1 | Mark 9:49 | Revelation 19 | Mark 9:50
Illustrations· 6
  1. cultural reference · unit #4 — Tom quotes "Come Thou Fount" to illustrate the human propensity to wander from God and the necessity of grace to bind the believer's heart to Christ.
  2. personal story · unit #6 — Tom shares a personal story about joy over small normalcies returning (coffee being made at church again) to illustrate the mingled experience of joy and sorrow in his current life, preparing the congregation for the emotional texture of the sermon.
  3. personal story · unit #7 — Tom shares the intrusion of grief into his joy, noting that seeing the church grounds reminds him of Richard Moreno and his own brother's suffering with COVID. This personal testimony prepares the congregation for the theme of suffering in the text.
  4. personal story · unit #14 — Tom tells a personal story of sharing the gospel with a young man on a flight to California. The Spirit-led witness was effective until Tom made a flippant political comment about California liberalism, potentially undercutting the gospel witness. The story illustrates the danger of leading new believers away from Christ into political tribalism.
  5. personal story · unit #27 — Tom tells a story of being called to comfort a family at the bedside of their teenage son dying of an overdose. The story illustrates the inescapable presence of suffering in pastoral ministry and in the world, setting up the pastoral need to speak into grief.
  6. personal story · unit #32 — Tom illustrates the mission with his own family's testimony: suffering has equipped them to comfort others. He contrasts his political quip on the airplane with what Jesus actually calls believers to do — be a lasting, preserving influence pointing people to Jesus. He quotes Piper's image of entering heaven singed and bloodied but held fast by Christ's promise.
Theological claims· 12
  1. The Word of God actively examines and changes us rather than passively waiting for our evaluation. unit #2
  2. The believer's propensity to wander from God, confessed in song, is confirmed and intensified by the hard truths of today's passage. unit #5
  3. Jesus warns that causing new or humble believers to stumble warrants judgment so severe that drowning would be preferable. unit #10
  4. The church must continually preach the foundational gospel truths to new believers, not relegating them as "basic" but recognizing them as essential and central. unit #12
  5. The text commands radical holiness without resolving how grace enables obedience; Jesus simply says, "Take sin seriously and turn from it." unit #18
  6. The text establishes four realities: sin is horrific, hell is real, heaven is real, and repentance is the call — all without yet explaining Christ's atoning work. unit #19
  7. Repentance is the universal call: believers must turn from sin completely, and unbelievers must turn to Christ or face eternal, inescapable judgment. unit #20
  8. Jesus calls both believers and unbelievers to radical holiness, refuting presumption on grace, while offering himself as the only means of salvation for those who cannot save themselves. unit #21
  9. Jesus promises suffering to his disciples, both the common suffering of fallen humanity and the specific suffering that comes from following him. unit #25
  10. Suffering will persist until Jesus returns in glory to vindicate his people, and this suffering serves a purpose in Jesus' refining work. unit #26
  11. Suffering's purpose is to drive believers to Christ himself, where peace is found not in answers but in the character of God revealed in his Word. unit #28
  12. Jesus is sanctifying the church through holy demands and suffering to shape believers into a preserving, peaceful influence in the world. unit #31
Quotations· 8
"Prone to wander, Lord, I feel it. Prone to leave the God I love. Prone to hear you and not heed it. Prone to scorn you in your love. Prone to wander. Prone to wander. Oh, to grace, how great a debtor. Daily I'm constrained to be. Let your goodness like a fetter bind my wandering heart to thee. Jesus sought me while a stranger wandering from the heart of God, and he rescue— he to rescue me from danger, and he used his own precious blood." — Come Thou Fount (unit #4)
"the fate of the leaders of an insurrection under the early zealot leader Judas the Galilean, whom the Romans drowned in a lake" — Kent Hughes (unit #9)
"in the apostles' imaginations, they could see the drowned bodies of the victims tethered by the neck at, to great millstones as they swayed to and fro in the currents of the sea" — Kent Hughes (unit #9)
"if anyone teaches a different doctrine, it does not— that does not agree with the sound words of our Lord Jesus Christ and the teaching that accords with godliness, he is puffed up with conceit and he understands nothing. He has an unhealthy craving for controversy and quarrels about words which produce envy, dissension, slander, evil suspicions, and constant friction among people who are depraved in mind and depraved and deprived of the truth" — Paul (unit #11)
"spit out the bones and hold on to the meat" — Chuck Mosey (unit #15)
"Therefore I Have Hope: 12 Truths That Comfort, Sustain, and Redeem in Tragedy" — unknown author (father who lost son Cam) (unit #26)
"for me, I've asked God a thousands of questions and have never received an answer. I have accepted that I never will understand why my little boy died at the age of 3. For the rest of my life, I'll live with that mystery. Too often people think that our peace will come from an answer to why. In reality, peace and comfort flow from the question of who. My comfort comes in what has been revealed to me about the character of God through his word and through his son Jesus, the very image of the living God. The explanation of Cam's death remains a secret thing to me and belongs to God. What has been revealed, what belongs to me, a child of the King, is God's word. Out of his word flows the promise of his goodness, his wisdom, and his holiness." — unknown author (father who lost son Cam) (unit #28)
"we're gonna get into heaven smelling like smoke. Our robes are gonna be seared, are gonna be singed at the base and dipped in blood. That's how we get in. We get in by the skin of our teeth and worse, but he takes us in because he promises to do so." — John Piper (unit #32)
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0 · Tom opens with humor and self-deprecation to establish rapport with the congregation, setting a relational tone before transitioning into the sermon proper

For months, I knew I was going to be preaching again at some point, probably, and I was just praying they would not ask me to videotape a clip with Freddie. So Vince, thanks for doing it, bro. We love Freddie. But I just privately panicked that I would ever have to do that. Oh Lord. Good morning, Cross of Grace, and good morning to all our guests. I'm Tom. It is a joy to be with you this morning.

1 · Tom prays for the Holy Spirit to superintend the preaching, acknowledging the text's difficult nature and asking that Christ be magnified and the congregation changed

Let's pray together. Amen. Lord, the nature of your word at times is striking and it catches us off guard. We are expecting or hoping for something else as we read through your Word, and yet we find ourselves in texts like today, and it seems like a massive interruption. Holy Spirit, we are dependent on you to work during the public preaching of the Word. We put all our trust in you, Jesus. And at the end of it all this morning, I pray, Jesus, that you would be magnified, that you would be lifted up, and that we would be changed, and our response would be to worship you as the one exalted, the very Son of God. That's our prayer, Lord, as we consider your word this morning. In the name of Jesus, amen. Amen. You may be seated.

2 · Tom asserts that the Word of God does not merely sit passively for our consideration; rather, it actively examines, exposes, and changes us

I ended— I ended the text this morning. I used a phrase, and even when the phrase came out of my mouth, I thought, that, that waters the text down already. I said, we'll consider your word, Lord. By the way, the Lord's word considers us. In other words, we— when we come to the word of God, it's not something that we're going to look at and evaluate and ponder about, which we do, we do those things, but that's not in the end what's actually occurring. The Word actually looks at us and ponders, if you would say, over us and examines us, and in this case it exposes us, but the joy is it changes us. So let that Let this weird interruption of text have its full effect on you. When you leave this morning, be moved by what we've heard in God's Word.

3 · Tom signals a shift to engage the hymn "Come Thou Fount" as a theological resource for understanding the sermon's theme of wandering from God

I'm going to quote from a hymn or a song that's been sung over the years, "Come Thou Fount." We sang it earlier. I think I'm going to read through part of it for a particular reason.

4 · Tom quotes "Come Thou Fount" to illustrate the human propensity to wander from God and the necessity of grace to bind the believer's heart to Christ

I'm just gonna pick it up right here. Prone to wander, Lord, I feel it. Prone to leave the God I love. Prone to hear you and not heed it. Prone to scorn you in your love. Prone to wander. Prone to wander. Oh, to grace, how great a debtor. Daily I'm constrained to be. Let your goodness like a fetter bind my wandering heart to thee. Jesus sought me while a stranger wandering from the heart of God, and he rescue— he to rescue me from danger, and he used his own precious blood.

5 · Tom asserts that the hymn's diagnosis of human wandering is not merely poetic sentiment but corresponds to the biblical diagnosis found in the day's text, preparing the congregation for a difficult passage

So here's why I actually read this. First, I hope— well, my hope is that it serves you. But it's actually to inform my heart as I consider the text. I said it again. As the text actually examines me. If you and I have not wandered from the faith, it's still true. The song is still true. We wander from the Lord. We— when we hear the song, we're like, yep, that's me. I'm prone to wander, Lord, I feel it. But when we hear things, prone to leave the God I love, or to hear you and not heed it, scorn you in your love, that seems pretty harsh. That's just a song though. It's not the everlasting word of the Lord. Well, our text today actually has that effect.

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Daily readings · Monday–Friday

5-day reading plan

This week we trace the arc of Christ's call to radical holiness: from God's Word as active examiner, through the reality of sin and judgment, to suffering as sanctifying grace that shapes us into witnesses of peace.

Monday Romans 6:1

Paul's rhetorical question — 'Shall we go on sinning that grace may increase?' — exposes the human heart's tendency to presume upon grace rather than flee from sin. The sermon's warning against this exact presumption shows us that Christ's radical call to holiness directly confronts our drift toward spiritual complacency. We cannot hear the severity of his demands without being forced to examine whether we, too, harbor this dangerous assumption.

Tuesday 1 Timothy 3:3-5

Paul's instruction to Timothy on the character requirements for church leaders emphasizes that spiritual maturity and stability cannot be rushed or presumed. These standards reflect the same concern Jesus expresses: that leaders and mature believers bear responsibility for the spiritual formation of those newer in faith. When we recognize how critical this formation is, we understand why the sermon calls us to continually reinforce gospel truth — it is the bedrock on which all faithful living and leadership rest.

Wednesday Revelation 19

In Revelation's vision of Christ's return and final judgment, we see the consummation of all things — the vindication of the righteous and the finality of separation from God for those who refuse him. This panoramic view of eternity illuminates why Jesus spoke with such intensity about sin and repentance in Mark 9: the stakes are absolute and irrevocable. The seriousness of his warnings flows from the seriousness of reality itself — heaven and hell are not metaphors but eternal destinations that demand our whole-hearted turn to Christ.

Thursday Revelation 19

The same passage that displays Christ's ultimate triumph also portrays the opposition and affliction his followers endure before his return. Suffering is woven into the Christian story not as accident but as part of our discipleship — a reality promised, not explained away. Understanding that Jesus himself was 'perfected through suffering' (Hebrews 5:8-9) reframes our trials not as failures of faith but as the very means by which we are refined into his likeness and shaped into witnesses who point others to him.

Friday 1 Timothy 3:3-5

Paul's charge to leaders — that they be 'self-controlled, respectable, hospitable, able to teach' and manage their own families — describes people whose holiness is visible and whose peace is infectious. These are the marks of disciples refined by suffering, those who have learned that their words and presence either draw others toward Christ or lead them astray. As we examine ourselves this week, we ask: Are we the kind of disciples whose lives, having been sanctified by grace and suffering alike, leave others with genuine peace and a clearer vision of Jesus?

Sunday-evening family table

When Our Words Hurt Someone's Faith

For the parent

Pastor Tom talked about how serious it is to cause someone—especially a younger or newer believer—to stumble away from Jesus. This prompt invites your family to think about real moments when words or actions matter more than we realize. Listen for moments when your kids recognize their own power to influence others, and gently help them see how grace compels us to be careful with that power.

Pastor Tom said that causing someone to stumble in their faith is so serious that Jesus said it would be better to drown in the sea than face God's judgment for it. Can you think of a time when someone's words or actions made it harder—or easier—for you to follow Jesus? What did they do, and how did it affect you?
Works for ages 8+; younger children can listen and share simple examples with parent help
Couples · three questions over coffee

Radical Holiness and Humble Mission

  1. What part of Jesus' warning about sin and hell stirred your heart most deeply, and what did it reveal to you about your own need for him?
  2. As a couple, are there ways we're causing one another or others to stumble through our words or actions—especially around controversial topics—and how can we repent and build each other up instead?
  3. Jesus promises that suffering will refine us into a preserving, peaceful witness; how can we pray for each other to find peace in Christ himself, not in answers, as we face the trials ahead?
Memory verse this week

Mark 9:42

Whoever causes one of these little ones who believe in me to stumble, it would be better for him if a great millstone were hung around his neck and he were thrown into the sea.

Why this verse: This verse captures Jesus' central warning that precipitated the entire passage: the gravity of leading young believers into sin and the severity of God's judgment against such offense. It anchors the sermon's thesis that disciples must guard against pride and carelessness in their influence on others, making it the indispensable foundation for understanding Christ's subsequent radical commands to personal holiness.

Where this was preached

About the church

Cross of Grace Church
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# Cross of Grace Church

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