Old Testament · Prophecy · book 29 of 66 · 1 min read

The book of Joel

A locust plague read as a warning, and the promise Peter quotes on the day the church begins.

It will happen afterward, that I will pour out my Spirit on all flesh; and your sons and your daughters will prophesy.
Joel 2:28

At a glance

Chapters
3
Author
Joel
Written
Uncertain; proposals range from the ninth to the fourth century BC
Written for
A community that has just lost a harvest
Themes
locusts, the day of the Lord, repentance, the Spirit

What it is about

Joel opens with a description of a locust invasion so total that the priests have nothing left to offer. Whether the locusts are literal, an image for an invading army, or both, the book treats the catastrophe as a summons.

Its call is to return with fasting and weeping, and specifically to rend your hearts and not your garments — a line aimed directly at the performance of repentance.

The third chapter turns to promise, and one paragraph of it became the text Peter preached from at Pentecost: the Spirit poured out on all flesh, sons and daughters, old and young.

Where to start

Chapter 2, which contains both the call to return and the promise Peter later quotes.

The chapters worth knowing

  • Joel 1 The locust devastation, described in terms that leave the priests with nothing to offer.
  • Joel 2 Rend your hearts and not your garments, and the promise Peter quotes at Pentecost.
  • Joel 3 The judgement of the nations, and the reversal of the swords-into-ploughshares image.

What people get wrong about it

That it is only about locusts. The insects occupy the first chapter; the book's subject is what a community does when something arrives that it cannot fix.

Questions

What is the book of Joel about?

A devastating locust plague treated as a summons to return, followed by the promise of the Spirit poured out on all people — the passage Peter quotes at Pentecost.

Why does Peter quote Joel in Acts 2?

Because Joel 2:28 promises the Spirit given to everyone regardless of age, sex or status, which is precisely what Peter claims is happening in front of the crowd.