The book of Joel reveals God's character - His holiness, love, patience and mercy. God is the ultimate adult who calls men and women to repent and be holy. Joel is about a past Day of the Lord and a future Day of the Lord — an eschatological Day of the Lord.
Plague of the Locust
Joel 1:1-20
Day of the Lord is Near
Joel 2:1-17
Future Day of the Lord, part 1
Joel 2:18-32
Future Day of the Lord, part 2
Joel 3:1-21