Summary
Joel Among the Minor Prophets
Joel stands among the twelve "minor" prophets—so called not because their message is small, but because their books are short. Like the other prophets, his task is fourfold: to expose sinful practices, to call God's people back to His law, to warn of judgment, and to anticipate the coming Messiah. Joel's book contains no datable historical events, so estimates of when he wrote range widely—from the ninth century BC all the way into the post-exilic period—but his message belongs to every age in which God's people need to be called home.
Rend Your Hearts, Not Your Garments
The heart of Joel's preaching is a summons to genuine repentance. In ancient practice, mourners would tear their robes, sit in sackcloth, and cover themselves in ashes as outward signs of grief and sorrow for sin. Joel does not condemn the outward act, but he refuses to let it stand alone. Through him the Lord cries, "Yet even now… return to me with all your heart, with fasting, with weeping, and with mourning. Rend your hearts and not your clothing" Joel 2:12-13.
This distinction matters for the doctrine of confession. Tearing garments without a torn heart is mere attrition—being sorry because we fear punishment, or going through outward motions to satisfy guilt. What God seeks is contrition: the broken and contrite spirit of Psalm 51:17, the inner sorrow that turns from sin to the mercy of God. Joel 2:13 has therefore long served the Church as a touchstone for true repentance, and it is often read on Ash Wednesday as the Lenten journey begins. The lesson on confession lesson 3 final draws this line clearly: penance and outward show cannot atone; only a heart turned to the Lord receives the absolution Christ has already secured.
The Outpouring of the Spirit
Joel's most familiar promise looks forward to a day when God's Spirit is poured out on all flesh: "Your sons and your daughters shall prophesy, your old men shall dream dreams, and your young men shall see visions… And it shall come to pass that everyone who calls on the name of the Lord shall be saved" Joel 2:28-32.
This prophecy bloomed in full at Pentecost. When the Spirit fell on the apostles in Acts 2, Peter stood up and announced that what the crowd was witnessing was nothing less than the fulfillment of Joel's words. The promise made through a prophet centuries earlier had become the present reality of the New Testament Church. The treatment of the prophets in Minor Prophets January 27, 2019 traces exactly this trajectory: the flowers the prophets pointed to bloom fully in Christ and in the gift of His Spirit.
Joel and the Reformation's Recovery of Repentance
Joel's call to rend hearts and not garments became central to the Reformation's recovery of biblical repentance. Luther's first thesis among the Reformation: Lesson 3 declares that when our Lord Jesus Christ said "Repent" Matthew 4:17, He willed the entire life of believers to be one of repentance. This is precisely what Joel had announced: not a one-time act, not a sacramental transaction, not a payment dropped into a collection box, but a whole life turned toward God in faith. The indulgence trade Luther confronted was, in its way, a return to torn garments without torn hearts—external acts substituted for the contrition God desires.
A Prophet of Mercy
For all his warnings of the day of the Lord, Joel is finally a prophet of mercy. The God who calls for torn hearts is the God who is "gracious and merciful, slow to anger, and abounding in steadfast love" Joel 2:13. He does not desire the death of the sinner but the return of the sinner. He pours out His Spirit not on the worthy but on all flesh who call upon His name. And He gathers His people not because they have made themselves clean by outward acts, but because Christ has made the final sacrifice and pours out the Spirit who applies that forgiveness to weeping and dry hearts alike.
Video citations
- confession lesson 3 final — Thank you so much for the gift of confession. Because with confession, we know that absolution is soon to follow. We thank you that you give us an opportunity to confess our sins to you with one…
- Reformation: Lesson 3 — Good morning. Let's begin with prayer. Lord, we thank You so much. We thank You for this day. It is a day You have made and we do rejoice and we are glad in it. We thank You for all the blessings…
- Minor Prophets January 27, 2019 — Well, last week we took a look at one of the more rugged parts of the prophetic books and that was Jeremiah, Ezekiel, Daniel, and Habakkuk and Zefania. And we saw the weeping prophet Jeremiah, but…