Very little is known about the prophet Joel or even the time period in which Joel was composed. The day of the Lord is the cornerstone theme of Joel’s prophetic message. Joel portrays the Day of the Lord as divine punishment for unrighteousness. Unlike later visions of the day of the Lord Joel does not present the day of the Lord as the climactic finale of history, but as events of judgment and restoration for both the land and God’s faithful. In fact the entire book of Joel is built around the day of the Lord theology, “every chapter being marked by that theme.”1 The day of the Lord is first mentioned in Joel 1:15, and then 5 other times throughout the Book; each reference a new episode in the saga of the day of the Lord. “No other Old Testament witness gives… as detailed and systematic a treatment”2 of the day of the Lord as Joel does.
1) Richard D. Patterson and Andrew E. Hill, Conerstone Biblical Comentary, ed. Philip W. Comfort (Carol Stream, IL: Tyndale, 2008).Pg 101
2) H. W. Wolf, Joel and Amos (Philadelphia, PA: Fortress, 1977). Pg 12.