Joel: Final Exhortation

Joel 3:9–16 — The Day That Decides All Things

Teaching Outline: Joel 3:9–17 – The Final Exhortation of the Covenant Lawsuit

The Sovereign’s Closing Word to His Vassals: “Though the Nations Rage, I Am Your Refuge”

Introduction (tie-back to the whole book – 60 seconds)

Beloved, we have walked through the covenant lawsuit together: Yahweh’s past mercies (historical prologue), the locust plague as Deut. 28 curse for covenant breach (indictment), the threat of worse judgment, the rending of hearts in repentance (2:12–13), and the flood of promised blessings (2:18–3:8). Now the Great King closes the treaty with the final exhortation—directed first and foremost to His people. The nations are summoned only so that we might hear the roar of our Sovereign and take refuge in Him.

I. A Sovereign Challenge to All Enemies of God’s Kingdom (vv. 9–11)

Proclaim this among the nations: Consecrate for war; stir up the mighty men… Beat your plowshares into swords… let the weak say, “I am a warrior.” Hasten and come, all you surrounding nations… Bring down your warriors, O Lord.

Matthew Henry captures the divine tone perfectly:

“It is spoken ironically… ‘Let them resolve, if they will, never to return to their husbandry again, but either to conquer or die; let none plead unfitness to bear arms, but let the weak say, I am strong and will venture into the field of battle.’ Thus does a God of almighty power bid defiance to all the opposition of the powers of darkness… he has them in derision (Ps. 2:1, 4).”

The very tools of peace become weapons of self-destruction. The nations arm themselves—plowshares into swords—yet it is the Sovereign who orchestrates the gathering. Their weakest members are taunted into boasting like warriors, marching straight into the Valley of Jehoshaphat where the sickle and winepress wait.

You may have heard this very line in a familiar worship song—“Give Thanks” by Henry Smith (and echoed in many others):

“And now let the weak say, ‘I am strong’… Because of what the Lord has done for us.”

Beloved, that is a misquotation when applied to God’s people. The Holy Spirit did not give these words as a faith confession for the saints. He gave them as a taunt against the heathen who are about to be judged. The weak among the enemies are being told to puff themselves up—right before the harvest of wrath is reaped. Our strength is never self-boasted; it is the refuge we flee into when the heavens and earth shake (v. 16). The weak among us do not say “I am a warrior”—we say, “The Lord is my strength and my song!” (Ex. 15:2; Ps. 118:14). That is the true final exhortation of the covenant.

Psalm 118:14 ESV

The Lord is my strength and my song; he has become my salvation.

Application to us (post-mil / partial preterist): Every empire that has harassed God’s people—Sennacherib, Nebuchadnezzar, Antiochus, and every anti-Christian system today—has heard this same ironic summons. And we see this continue in the persecutions of the early church, both from unbelieving Jews and from Rome, where the people of Christ were opposed, scattered, and put to death. They rage; He laughs (Ps. 2). The locusts of ch. 1 were but the first wave; now the nations themselves are called to the courtroom.

II. A Charge to the Ministers of God’s Justice (vv. 11b–13)

The challenge to the nations is immediately turned into a summons and a charge: “Bring down your warriors, O Lord” (v. 11). Then comes the direct command to the instruments of divine justice: “Put in the sickle, for the harvest is ripe. Go in, tread, for the winepress is full. The vats overflow, for their evil is great” (v. 13).

Matthew Henry explains: “A charge given to the ministers of God’s justice to appear and act against these daring enemies of his kingdom among men… When they bring their forces into the field, let God bring his… Put you in the sickle, for the harvest is ripe… their wickedness is great.” The greatness of men’s wickedness makes them ripe for God’s judgment. Our Savior Himself expounded this metaphor in the parable of the Wheat and Tares in Matthew 13:39: The same imagery appears in Revelation 14:15, 18, where the sharp sickle gathers the vintage of wrath.

Matthew 13:37–39 ESV

He answered, “The one who sows the good seed is the Son of Man. The field is the world, and the good seed is the sons of the kingdom. The weeds are the sons of the evil one, and the enemy who sowed them is the devil. The harvest is the end of the age, and the reapers are angels.

Proof from the text and the whole lawsuit: The “evil” that fills the vats is the very evil the nations committed against God’s people—scattering Israel, selling God’s people into slavery, dividing their inheritance (3:2–6). The Sovereign who sent the locust plague as covenant curse (Deut. 28; Joel 1–2) now turns the reapers upon the oppressors. The sickle and winepress are not random pictures; they prove that the covenant God keeps perfect accounts. Every injury done to His people is recorded, and the measure is now full. As Thomas Watson would press: sin is a debt that must be paid—either by the blood of the Lamb or by the winepress of wrath.

III. The Vast Appearance in the Valley of Decision (v. 14)

“Multitudes, multitudes, in the valley of decision! For the day of the Lord is near in the valley of decision.”

Matthew Henry unfolds it:

“The vast appearance that shall be in that great and solemn day… Multitudes, multitudes… the same which before was called the valley of Jehoshaphat, or of the judgment of the Lord… the valley of threshing… the proud enemies of God’s people will then be crushed and broken to pieces… Hamonim, hamonim!—O what vast multitudes of sinners will divine justice be glorified in the ruin of at that day! A multitude of living… and a multitude of dead, for Christ shall come to judge both the quick and the dead.”

Proof and doctrinal weight: The repetition “multitudes, multitudes” is Hebrew poetry’s way of declaring innumerable hordes. This is the great courtroom of the Sovereign—“Yahweh Judges.” The day of the Lord is “near” in the sense that it is certain and ripening (cf. the same language in ch. 1:15 and 2:1). The valley of decision is the valley of threshing: the proud enemies are crushed like grain on the summer threshing-floor (Isa. 41:15–16). Every scattered Israelite, every sold child, every divided inheritance (3:2–3) is now answered in perfect justice.

Partial-preterist fulfillment: We see this historically in the judgments upon the nations that plagued post-exilic Judah and supremely in the AD 70 shaking of the old covenant order.

Post-millennial hope: The same principle continues as the gospel advances—the systems that oppose King Jesus are being gathered for the same threshing.

IV. The Cosmic Shaking That Accompanies the Day (v. 15)

“The sun and the moon are darkened, and the stars withdraw their shining.”

Matthew Henry proves the point:

“The amazing change that shall then be made in the kingdom of nature… The sun and moon shall be darkened, as before, ch. 2:31. Their glory and lustre shall be eclipsed by the far greater brightness of that glory in which the Judge shall then appear. Nay, they shall themselves be set aside in the dissolution of all things… Those that fall under the wrath of God in that day of wrath shall be cut off from all comfort and joy, signified by the darkening not only of sun and moon, but of the stars also.”

Proof from Scripture: This is classic theophany language for the day of the Lord (Isa. 13:10; Ezek. 32:7–8; Matt. 24:29). The same cosmic signs that announced judgment on Judah in chapter 2 now announce judgment on her oppressors. The darkening proves that the created order itself testifies to the Sovereign’s coming. No comfort remains for the wicked when the very lights of heaven are eclipsed by the glory of the Judge.

V. The Different Impressions Upon the Wicked and the Righteous – The Heart of the Final Exhortation (vv. 16–17)

“The Lord roars from Zion, and utters his voice from Jerusalem, and the heavens and the earth quake. But the Lord is a refuge to his people, a stronghold to the people of Israel. So you shall know that I am the Lord your God, who dwells in Zion, my holy mountain. And Jerusalem shall be holy, and strangers shall never again pass through it.”

Matthew Henry gives us the full doctrinal proof:

“To the wicked it will be a terrible day. The Lord shall then speak from Zion and Jerusalem… He shall speak from heaven… our God shall come, and shall not keep silence… The judgment of the great day will make the ears of those to tingle that continue the implacable enemies of God’s kingdom. God’s voice will then shake terribly both heaven and earth… Terrors out of Zion are the sorest terrors, and enough to make heaven and earth shake.”

But—and here is the gospel hinge of the entire covenant lawsuit—“the Lord is a refuge to his people, a stronghold to the people of Israel.”

To the righteous it will be a joyful day. “Their longings shall be satisfied: The Lord will be the hope of his people… their harbour, refuge, and home… Their happiness shall be confirmed: God will be… the strength of the children of Israel… Their holiness shall be completed… Then shall Jerusalem be holy… no stranger shall pass through her any more… there shall not enter into the New Jerusalem any thing that defiles… And God shall in all this be manifested and magnified: So shall you know that I am the Lord your God.”

Proof from the text and redemptive history: The same roar that terrifies the nations shelters the saints (cf. Amos 1:2; Ps. 46:1). The Sovereign has not forgotten His people. The day of decision is the day of deliverance for all who rent their hearts and returned (2:12–13). The church—true Zion, the Israel of God—is the holy city where strangers (unbelievers) will never again pass through. This is the post-millennial triumph: the gospel subdues the nations until the knowledge of the Lord covers the earth as the waters cover the sea.

Doctrinal soul food (Puritan close):

The same roar that shakes the nations shelters the saints. The Sovereign has not forgotten His people. The day of decision is the day of deliverance for all who have rent their hearts and returned to Him (2:12–13).

Closing Charge (Henry-flavored, Puritan heart)

O beloved, when heaven and earth shake, when the nations arm themselves and the harvest of wrath is ripe, look up! The Lord roars from Zion still. He is your hope, your stronghold, your home. Cast yourself upon Him this day, rend your hearts afresh, and you shall never be moved. Then shall you know that He is the Lord your God, dwelling in Zion His holy mountain.