1. God’s appointed time of mercy on His people.

In those days and at that time, when I restore the fortunes of Judah and Jerusalem,… Joel 3:1

2. God’s attitude of judgment against enemy nations.

A. Sin’s practice

I will gather all nations and bring them down to the Valley of Jehoshaphat. There I will enter into judgment against them concerning my inheritance, my people Israel, for they scattered my people among the nations and divided up my land. They cast lots for my people and traded boys for prostitutes; they sold girls for wine that they might drink. Joel 3:2-3

B. Sin’s consequence

“Now what have you against me, O Tyre and Sidon and all you regions of Philistia? Are you repaying me for something I have done? If you are paying me back, I will swiftly and speedily return on your own heads what you have done. For you took my silver and my gold and carried off my finest treasures to your temples. You sold the people of Judah and Jerusalem to the Greeks, that you might send them far from their homeland. “See, I am going to rouse them out of the places to which you sold them, and I will return on your own heads what you have done. Joel 3:4-7

C. Severity of God’s wrath

I will sell your sons and daughters to the people of Judah, and they will sell them to the Sabeans, a nation far away.” The LORD has spoken. Proclaim this among the nations: Prepare for war! Rouse the warriors! Let all the fighting men draw near and attack. Beat your plowshares into swords and your pruning hooks into spears. Let the weakling say, “I am strong!” Come quickly, all you nations from every side, and assemble there. Bring down your warriors, O LORD! “Let the nations be roused; let them advance into the Valley of Jehoshaphat, for there I will sit to judge all the nations on every side. Swing the sickle, for the harvest is ripe. Come, trample the grapes, for the winepress is full and the vats overflow– so great is their wickedness!” Multitudes, multitudes in the valley of decision! For the day of the LORD is near in the valley of decision. The sun and moon will be darkened, and the stars no longer shine. The LORD will roar from Zion and thunder from Jerusalem; the earth and the sky will tremble. But the LORD will be a refuge for his people, a stronghold for the people of Israel. Joel 3:8-16

3. God’s assurance of future blessings.

A. The blessing of His presence.

“Then you will know that I, the LORD your God, dwell in Zion, my holy hill. Joel 3:17a

B. The blessing of His protection.

Jerusalem will be holy; never again will foreigners invade her. Joel 3:17b

C. The blessing of His prosperity.

“In that day the mountains will drip new wine, and the hills will flow with milk; all the ravines of Judah will run with water. A fountain will flow out of the LORD’s house and will water the valley of acacias.
Joel 3:18

D. The blessings of His peace.

But Egypt will be desolate, Edom a desert waste, because of violence done to the people of Judah, in whose land they shed innocent blood. Judah will be inhabited forever and Jerusalem through all generations. Their bloodguilt, which I have not pardoned, I will pardon.” THE LORD DWELLS IN ZION! Joel 3:19-21