Writers of the Bible
Joel
date uncertain — perhaps 9th–5th century BC · Prophet of Judah · interpreter of a locust plague · herald of the Day of the LORD · promiser of the poured-out Spirit
Hebrew יוֹאֵל (Yo'el) — "the LORD is God"
We cannot even name his century — but when the church preached its first sermon at Pentecost, it opened with his words.
The Books They Wrote (1)
The heading gives us its author and nothing more: "The word of the LORD that came to Joel son of Pethuel" (1:1). The book speaks constantly of Zion, the temple, and the priests, so Joel almost certainly prophesied in Jerusalem to Judah, in the raw aftermath of a locust plague that had stripped the land bare. Because no king is named, its date is the most open question among the prophets — and its message has never needed one.
Life Story
A name and a father — nothing more
Everything Scripture tells us about Joel the man fits inside one verse: his name, and his father's name, Pethuel. No hometown, no king, no dates, no death. A dozen other men called Joel appear across the Old Testament, and none of them can be shown to be this one. Even his century is uncertain: because the superscription names no king — alone among the dated prophets — careful readers have placed him anywhere from the ninth century BC to the years after the exile, and the clues cut both ways: the temple stands and the priests are serving, no royal court is anywhere in view, and the enemies he names fit more than one era. Honesty requires saying it plainly: we do not know when this man lived. What we can say is where he stood: in Jerusalem, close enough to the temple to notice that the daily grain and drink offerings had stopped (1:9), on close enough terms with the priests to summon them to weep "between the portico and the altar" (2:17). And perhaps the anonymity is its own message. His name means "the LORD is God" — a whole theology in two syllables — and God has let his book float free of any king's reign, so that every generation that meets disaster has been able to read it as if it were addressed directly to them.
The year the locusts came
The book opens on a land that has just been eaten. Wave after wave of locusts had come through — "What the locust swarm has left the great locusts have eaten; what the great locusts have left the young locusts have eaten" (1:4) — until the vines were stripped, the fig trees gnawed down to white wood, and the bark itself torn off and thrown away (1:7). Anyone who has lived through a locust year knows the horror compressed into those verses: a sky that darkens at noon, a sound like fire moving through stubble, and then silence over fields with nothing left to harvest. In an agricultural nation this was total collapse — even the temple's daily offerings stopped, because there was nothing left to offer. Joel's genius, under God, was to refuse to treat the catastrophe as mere weather. He saw the locust army as the herald of a greater army, and behind both, the approach of "the day of the LORD" — the day God himself steps into history to judge. But at the center of the book he swings the door of mercy wide open: "Rend your heart and not your garments. Return to the LORD your God, for he is gracious and compassionate, slow to anger and abounding in love" (2:13). The nation fasted, the priests wept, and God answered with one of the tenderest promises in Scripture: "I will repay you for the years the locusts have eaten" (2:25).
The promise that outlived him
Then the book lifts its eyes past the healed fields to a horizon no one had described before: "And afterward, I will pour out my Spirit on all people. Your sons and daughters will prophesy, your old men will dream dreams, your young men will see visions. Even on my servants, both men and women, I will pour out my Spirit in those days" (2:28–29). In Israel the Spirit had rested on the few — a Moses, a Samson, a David. Joel announced a day when the gift would flood every category the ancient world used to rank people: age, sex, social class. And with it, an open door: "everyone who calls on the name of the LORD will be saved" (2:32). Of Joel's death we know exactly what we know of his life: nothing. But no minor prophet has a more spectacular afterlife. On the morning of Pentecost, when the Spirit fell and the crowd sneered that the disciples were drunk, Peter stood up and preached Christianity's first sermon — and its opening move was this book: "this is what was spoken by the prophet Joel" (Acts 2:16). The church was born quoting him. Paul later set the gospel's widest invitation on his verse — "Everyone who calls on the name of the Lord will be saved" (Romans 10:13). The man without a biography turned out to have written the birth announcement of the church.
Key Verse · Joel 2:28
“And afterward, I will pour out my Spirit on all people. Your sons and daughters will prophesy, your old men will dream dreams, your young men will see visions.”
Pointing to Christ
When Peter needed words big enough for the morning the Spirit fell, he reached for Joel: "this is what was spoken by the prophet Joel: 'In the last days, God says, I will pour out my Spirit on all people'" (Acts 2:16–17). Everything Joel promised funnels through what Jesus accomplished — it is the crucified and risen Christ, Peter says, who "has received from the Father the promised Holy Spirit and has poured out what you now see and hear" (Acts 2:33). Joel's open door became the gospel's front door: "everyone who calls on the name of the LORD will be saved" (Joel 2:32) is quoted in Romans 10:13 as the offer of salvation in Jesus' name. And his Day of the LORD still stands on the horizon — now with a face, since God "has set a day when he will judge the world with justice by the man he has appointed" (Acts 17:31). The prophet without a date wrote the timetable of redemption: the Spirit poured out, the name to call on, the Day to come.
Questions People Ask
Why don't we know when Joel lived — and does it matter?
Because his one-verse heading names his father but no king, and the book mentions no datable event beyond the locusts, scholars' honest estimates range across four centuries. It matters less than you might fear. Nothing Joel teaches depends on a date: locusts, repentance, the Day of the LORD, and the promise of the Spirit are not tied to one reign. If anything, the openness is fitting — a book about how any generation should meet disaster reads with equal force in every generation. And the New Testament settles the only dating question that finally matters: Joel's promise came due at Pentecost.
What is "the Day of the LORD"?
It is the prophets' name for the day God steps directly into history — no longer working patiently through circumstance, but arriving in person to judge evil and save his people. Joel uses it in both directions: for the nations it means reckoning, but he shocks his hearers by warning that it comes for Jerusalem too — God's own people are not exempt from God's holiness. The New Testament carries the phrase forward to the return of Christ, "the day of the Lord Jesus." For Joel the right response was never calendar-watching but heart-rending: "Rend your heart and not your garments" (2:13).
What does an ancient locust plague have to do with me?
Joel's method is the answer: he took the disaster in front of him and asked what God was saying through it. Most of us will never see locusts, but every life has its stripped years — the diagnosis, the layoff, the loss that eats everything down to the bark. Joel refuses both cheap answers: he will not say "this is meaningless," and he will not say "this is exactly what you deserved." He says: let it wake you; return to the God who is "gracious and compassionate"; and then hear the promise that goes deeper than explanation — "I will repay you for the years the locusts have eaten" (2:25). God restores devoured years; that is Joel's word to you.