Book 29, Joel, begins with the prophet Joel receiving the word of the LORD.
Joel calls for attention from elders and all inhabitants of the land, emphasizing the unprecedented devastation caused by locusts as a divine judgment.
The locust invasion is described as successive and complete, leaving the land barren and desolate.
Drunkards are urged to weep due to the loss of wine, farmers and priests mourn as crops fail, and offerings to the LORD cease.
Joel calls for national lamentation, repentance, fasting, and prayer to appeal to the LORD's mercy.
The coming "Day of the LORD" is described as a day of destruction, darkness, and the unleashing of divine power.
Joel urges the people to "rend your heart, and not your garments," turning fully to God in repentance, highlighting His mercy and grace.
Hope is promised if the people repent: the LORD will restore the land, send blessings of food and wine, and remove the invading forces.
God promises to pour out His Spirit upon all people, leading to visions, prophecies, and dreams.
The coming cosmic signs (darkened sun, blood moon) warn of the "great and terrible" Day of the LORD.
Deliverance and salvation are assured for all who call upon the name of the LORD, particularly in Zion and Jerusalem.
Joel prophesies God's judgment on all nations for their oppression of Judah and Jerusalem, gathering them to the Valley of Jehoshaphat.
The LORD declares judgment against nations for actions like slavery and plundering, promising justice and recompense.
The chapter concludes with a vision of restoration: Judah and Jerusalem will be safe and inhabited forever, flowing with blessings like wine and water from the LORD.