As we bring our study of Joel to a close, the prophet takes us into the Valley of Decision—a grand judicial assembly where every hostile earthly power is summoned before the divine tribunal. The time of God’s long-suffering toward unrepentant wickedness gives way to final, righteous judgment, ultimate vindication, and everlasting kingdom restoration. For behold, in those days and at that time, when I restore the fortunes of Judah and Jerusalem, I will gather all the nations and bring them down to the Valley of Jehoshaphat. And I will enter into judgment with them there, on behalf of my people and my heritage Israel, because they have scattered them among the nations and have divided up my land, and have cast lots for my people, and have traded a boy for a prostitute, and have sold a girl for wine and have drunk it. “What are you to me, O Tyre and Sidon, and all the regions of Philistia? Are you paying me back for something? If you are paying me back, I will return your payment on your own head swiftly and speedily. For you have taken my silver and my gold, and have carried my rich treasures into your temples. You have sold the people of Judah and Jerusalem to the Greeks in order to remove them far from their own border. Behold, I will stir them up from the place to which you have sold them, and I will return your payment on your own head. I will sell your sons and your daughters into the hand of the people of Judah, and they will sell them to the Sabeans, to a nation far away, for the Lord has spoken.” Proclaim this among the nations: Consecrate for war; stir up the mighty men. Let all the men of war draw near; let them come up. Beat your plowshares into swords, and your pruning hooks into spears; let the weak say, “I am a warrior.” Hasten and come, all you surrounding nations, and gather yourselves there. Bring down your warriors, O Lord. Let the nations stir themselves up and come up to the Valley of Jehoshaphat; for there I will sit to judge all the surrounding nations. 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. Multitudes, multitudes, in the valley of decision! For the day of the Lord is near in the valley of decision. The sun and the moon are darkened, and the stars withdraw their shining. 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. The Glorious Future of Judah “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. “And in that day the mountains shall drip sweet wine, and the hills shall flow with milk, and all the streambeds of Judah shall flow with water; and a fountain shall come forth from the house of the Lord and water the Valley of Shittim. Egypt shall become a desolation and Edom a desolate wilderness, for the violence done to the people of Judah, because they have shed innocent blood in their land. But Judah shall be inhabited forever, and Jerusalem to all generations. I will avenge their blood, blood I have not avenged, for the Lord dwells in Zion.” Joel 3: 1-21 In this study, we press into a single core question: Who shall judge? In this episode, we unpack: The Gathering of the Nations: "Multitudes, multitudes, in the valley of decision!" God summons the rebellious nations to the Valley of Jehoshaphat ("The Lord Judges"). From a Reformed perspective, God’s absolute sovereignty extends over all human empires; none can escape His cosmic courtroom or resist His holy summons.The Final Harvest of Wrath: Joel uses vivid apocalyptic imagery—sickles cutting down grain and winepresses overflowing with wickedness. We examine how the dark day of divine vengeance against the reprobate is simultaneously the day of ultimate refuge and deliverance for God's elect.The Vindication of His people: God publicly rights every wrong committed against His covenant community. The mountains drip with sweet wine, and a fountain flows from the house of the Lord, symbolizing the rich, eternal gospel blessings secured for His church.An Eternal Dwelling Place: While Egypt and Edom become desolate wildernesses, Judah abides forever. The prophecy closes with an glorious promise: "For the Lord dwells in Zion." Through the finished work of Jesus Christ, we are brought into the New Jerusalem, where God abides with His redeemed people eternally.