PsalmTree

James 4:13-17...Boasting About Tomorrow

Come now, you who say, “Today or tomorrow we will go into such and such a town and spend a year there and trade and make a profit”— yet you do not know what tomorrow will bring. What is your life? For you are a mist that appears for a little time and then vanishes. Instead you ought to say, “If the Lord wills, we will live and do this or that.” As it is, you boast in your arrogance. All such boasting is evil. So whoever knows the right thing to do and fails to do it, for him it is sin. 

Explanation: James 4:13–17 confronts self-confident planning that leaves God out and calls believers to live every decision under His will.

v. 13 – The problem: godless planning...James pictures merchants saying, “Today or tomorrow we will go…spend a year there…carry on business…and make money.” They assume they control timing, location, duration, and results. The issue is not planning or profit itself; it is planning as if God does not exist, with a functional atheism that treats life as entirely in our hands.

v. 14 – The reality: life is fragile and brief...James reminds us, “You do not even know what will happen tomorrow.” Our knowledge and control are far more limited than we like to admit. He then asks, “What is your life? You are a mist that appears for a little while and then vanishes.” The image of a vapor or breath in cold air shows how temporary and insubstantial our earthly life is compared to God’s eternal purposes.

v. 15 – The correct posture: “If it is the Lord’s will”...Instead of that proud certainty, James says, “You ought to say, ‘If it is the Lord’s will, we will live and do this or that.’” The point is not a magical phrase to tack onto sentences but a settled heart-attitude:

• My very life (“we will live”) is in God’s hands.

• My plans (“do this or that”) must stay submitted to His will.

It means we plan, work, and decide actively, but always with a conscious dependence on God’s sovereignty and a readiness to change course if He leads otherwise.

v. 16 – The diagnosis: arrogant boasting is sin...James says, “As it is, you boast in your arrogant schemes. All such boasting is evil.” The boasting is in the presumption that our plans will certainly succeed, that we can secure our own future without reference to God. James calls that evil, not just unwise. It reveals pride, self-reliance, and a refusal to acknowledge God’s rule over our days, money, and success.

v. 17 – The principle: sins of omission...James finishes with a general principle: “If anyone, then, knows the good they ought to do and doesn’t do it, it is sin for them.” In context, the “good” includes acknowledging God’s will in our planning and living dependently rather than arrogantly. But the principle is broader: sin is not just doing wrong; it is also failing to do the right we clearly know. That exposes complacency and passivity where God calls for obedience.

In short, it pushes us from self-assured independence to humble, active dependence on God in every aspect of daily life.

Illustration: Meet Tom, a skilled amateur golfer eyeing the regional pro tour, who brags to buddies at the clubhouse: “Tomorrow I tee off qualifiers, spend a year grinding circuits, land sponsorships, and bank six figures—tour life’s mine!” He skips rest, drills obsessively, bets big on gear, and ignores a nagging shoulder twinge, certain victory’s locked in. Mid-qualifier swing, his shoulder tears—life’s “mist” vanishes in pain, with no tour, mounting bills, and rehab stretching months, not his planned “year.” His boasting turned foolish: arrogant schemes like skipping warm-ups or docs proved evil pride, and he knew stretching or rest was wise but blew it off—classic sin of omission. Wise Tom would’ve said, “If the Lord wills, I’ll compete and grow,” training hard yet praying, heeding body signals, and coaching humbly; post-injury, he coaches juniors and finds joy serving, not chasing trophies. James nails it: plan boldly, but submit life and swings to God’s sovereign fairways, or risk double-bogey regret.

Application: Godly teachers collectively apply James 4:13-17 as a divine rebuke to presumptuous planning that omits God, urging believers to embrace life’s vapor-like brevity (v. 14) through humble, active dependence on His will (v. 15). Piper calls for aggressive planning fueled by eternal joy in Christ rather than self-secured futures; Chan jolts comfortable Christians to radical surrender, risking all urgently as dying flames; Spurgeon demands immediate repentance of folly, waiting for God’s open doors over proud charging ahead; MacArthur exposes practical atheism in mapping timelines without prayer, replacing presumption with Scripture-guided submission; Keller targets modern autonomy in careerism, integrating bold action with surrendered outcomes; Tozer unmasks divided hearts chasing temporal idols, recalibrating as stewards for kingdom ends; and Sproul stresses God’s lordship over time, making independent boasts rebellious sin (v. 16-17) remedied by provisional wisdom and prompt obedience to known good.

To plan according to God’s will as taught in James 4:13-17, follow these practical, sequential steps rooted in humble dependence rather than arrogant presumption.

 1. Start with Prayerful Submission: Begin every planning session by committing your desires to God, praying not just for success but alignment: “Lord, if it is Your will, guide my steps” (cf. v. 15). Ask for wisdom (James 1:5) and surrender outcomes, acknowledging life’s mist-like brevity (v. 14).

2. Ground Plans in Scripture: Search the Bible for principles that fit your situation—e.g., stewardship (Matt. 25), work ethic (Prov. 6:6-11), or generosity (1 Tim. 6:17-19). Reject any plan violating clear commands; let God’s revealed will filter your ideas first.

3. Seek Godly Counsel: Share your plans with mature believers or mentors who prioritize Scripture over flattery (Prov. 15:22). Ask: “Does this honor God? Am I holding it loosely?” Their input guards against self-deceptive boasting (v. 16).

4. Build Flexibility into Timelines: Plan actively—set goals, budgets, and milestones—but phrase them provisionally: “If the Lord wills…” Include buffers for pivots, watching for closed doors or providential signs like peace (Col. 3:15) or confirmations.

5. Act on Known Good Promptly: Discern and obey what you already know to do (v. 17)—e.g., if God nudges generosity or rest, don’t delay. Review progress weekly: “Is pride creeping in? Redirect to God’s glory?” Repent quickly and adjust.

6. Daily Habit: Morning: Pray + read Proverbs/James. Evening: Thank God for His will shown that day, even in disruptions. This turns planning from self-reliant scheming into worshipful stewardship.

Prayer: Heavenly Father, as I reflect on James 4:13-17 and the wisdom of Godly leaders, I confess my tendency to plan presumptuously, boasting in arrogant schemes as if tomorrow were mine to control, ignoring life’s mist-like brevity. Today I commit to humble dependence on Your sovereign will: I will pray over every plan, ground decisions in Scripture, seek godly counsel, build flexibility into my steps, and act promptly on the good I know to do, phrasing my goals as “If the Lord wills, I will live and pursue this for Your glory.” Guard me from practical atheism and sins of omission; empower me to plan boldly yet surrender outcomes to You, living urgently as a steward of vapor-days for eternal good. In Jesus’ name, Amen.

Live boldly out there today...

Additional Exegetical and Grammatical resources

James 4:13–17 delivers a sharp prophetic rebuke against presumptuous planning that functionally excludes God, structured as diagnosis (vv. 13–14), prescription (v. 15), condemnation (v. 16), and principle (v. 17).

v. 13: Arrogant Merchants’ Blueprint (Ἄγε νῦν οἱ λέγοντες)

Ἄγε νῦν (rare NT brusque imperative, “Come now!”—cf. Jas 5:1) grabs attention like a Hellenistic orator summoning fools. οἱ λέγοντες (pres. act. ptc., habitual “those who say”) introduces a stereotype: merchants (emporeuómenoi, “trade”) boasting fourfold control—σήμερον ἢ αὔριον (“today or tomorrow,” temporal mastery), poreuómetha eis πόλιν (“go to such a city,” spatial), ἐνιαυτὸν ἐπιστρήψομεν ἐκεῖ (“spend a year there,” durational), ἐμπορευσόμεθα καὶ κερδήσομεν (“do business and profit,” vocational success). Future indicatives (poreuómetha, epistrḗpsomen, emporeusómentha, kerdḗsomen) pulse with impious certainty; kerdos connotes not just gain but greed (cf. 1 Tim 6:5).

v. 14: Reality Check—Life’s Vapor (οὐκ ἐπίστασθε τὸ τῆς αὔριον)

Rhetorical ὑμεῖς (emphatic “you”) contrasts their hubris: οὐκ ἐπίστασθε (perf. ind., “you do not know/understand”) what tomorrow holds. τί ἡ ζωὴ ὑμῶν; (“What is your life?”)—interrogative probes ontology. ἀτμὶς γάρ ἐστε (“For you are a mist/vapor,” pres. ind. stative), προσκαίρως φαινομένη (pres. ptc., “briefly appearing”), ἔπειτα ἀφανιζομένη (pres. ptc., “then vanishing”). Atmís evokes breath on cold glass (cf. Jas 1:10–11; Ps 39:5 LXX); four rapid clauses dismantle their blueprint, exposing ignorance and fragility.

v. 15: The Godly Alternative (οὕτως λέγειν ὑμᾶς δεῖ)

Οὕτως (“thus/instead”) pivots; λέγειν ὑμᾶς δεῖ (pres. inf. + δεῖ, “you ought to say”) mandates habitual speech reflecting heart-reality. Conditional ἐὰν ὁ κύριος θελήσῃ (“if the Lord wills,” subjunctive + aor. act. subj.) submits life (ζήσωμεν) and action (ποιήσωμεν) to divine volition (boulḗ, sovereign purpose). Not magic formula but worldview: merchants plan boldly, but outcomes hinge on God (cf. Acts 18:21; 1 Cor 16:7).

v. 16: Sinful Boasting Exposed (καυχᾶσθε ἐν ταῖς ἀλαζονίαις ὑμῶν)

Νυνὶ δὲ (“but now”) indicts reality: καυχᾶσθε (pres. mid., ongoing “boast”) ἐν ταῖς ἀλαζονίαις (“in your pretensions/arrogance,” dat. pl.; alazoneía = swaggering boasts). πᾶσα καύχησις τοιαύτη πονηρά ἐστιν (“all such boasting is evil,” comprehensive predication). Present tense universalizes: presumption is inherently wicked, dethroning God.

v. 17: Sin of Omission Defined (εἰδὼς οὖν καλὸν ποιεῖν)

Οὖν infers application; εἰδὼς (perf. ptc. dat., “the one having known”—full comprehension) καλὸν ποιεῖν (“good to do,” acc. + inf.) καὶ μὴ ποιοῦν (neg. + pres. ptc., “and not doing”). ἁμαρτία αὐτῷ ἐστιν (“to him it is sin,” dat. ethical dative). Bridges to ch. 5 (unpaid wages); echoes Lev 19:17–18; defines sin as knowing duty (ethical will) yet neglecting (cf. Lk 12:47; parable of Good Samaritan).

Synthesis

Grammatically, futures (v. 13) yield to conditionals/subjunctives (v. 15); indicatives of certainty crash against interrogative ignorance (v. 14). Exegetically, James targets believing merchants’ practical atheism—planning sans God is prideful idolatry, cured by verbalized submission and immediate obedience. Thematic bridge from 4:1–12 (worldliness) to 5:1–6 (rich oppressors); echoes Proverbs’ wisdom contrast (boastful fool vs. humble sage).

Sources Used

Greek Text and Interlinear Tools

•  “Faith’s Object” – James 4:13-17 - Hillsdale FMC**: Structure, present tense legontes, atmis vapor imagery.

•  James 4:13 Greek Text Analysis - Bible Hub**: Ἄγε νῦν parsing, future indicatives.

• James 4 Greek Interlinear - Abarim Publications**: Parsed per-word translation.

• James 4:13-17 Interlinear (NAS) - Bible Study Tools**: Lexicon support.

• James 4:17 Greek Text Analysis - Bible Hub**: εἰδὼς καλὸν ποιεῖν structure.

Verse-by-Verse Commentaries

• Expositor’s Greek Testament - James 4**: Alazoneía arrogance, broader ch. 4 links.

• Commentary on James 4:13-17 - Biblical Scholarship**: Rhetorical contrasts, sin of omission.

• Interpretation of James 4:17 - Edge Induced Cohesion**: Levitical echoes.

• Planning God’s Way (James 4:13-17) - Bible.org**: Merchant blueprint breakdown.

• Make Plans Without Playing God - H.B. Charles Jr.**: Foolish planning elements.

Sermon and Application Resources

• Boasting about Tomorrow - Red Village Church**: Frailty correction.

• James 4:13-17 - Our Actions Should Match Knowledge**: Presumptuousness as sin.

• Spurgeon’s Verse Expositions - James 4**: Folly of tomorrow presumption.

• God’s Will About the Future - Spurgeon Gems**: Sermon on v. 15 submission.

• Pen or Pencil? - Logos Sermons**: Lifelong insignificance motif.

• Business Forecasting - Theology of Work**: Merchant context.

• God’s Plans vs. Our Plans - Life BPC**: Detailed itinerary critique.