Book of Joel in Easton's Bible Dictionary
Joel was probably a resident in Judah, as his commission
was to
that people. He makes frequent mention of Judah and
Jerusalem
(1:14; 2:1, 15, 32; 3:1, 12, 17, 20, 21).
He probably flourished in the reign of Uzziah (about
B.C.
800), and was contemporary with Amos and Isaiah.
The contents of this book are, (1.) A prophecy of a
great
public calamity then impending over the land,
consisting of a
want of water and an extraordinary plague of locusts
(1:1-2:11).
(2.) The prophet then calls on his countrymen to
repent and to
turn to God, assuring them of his readiness to
forgive
(2:12-17), and foretelling the restoration of the
land to its
accustomed fruitfulness (18-26). (3.) Then follows a
Messianic
prophecy, quoted by Peter (Acts 2:39). (4.) Finally,
the prophet
foretells portents and judgments as destined to fall
on the
enemies of God (ch. 3, but in the Hebrew text 4).
Link: https://bible-history.com/eastons/J/Joel,+Book+of/