Repentance

"Now, therefore," says the LORD, "Turn to Me with all your heart, With fasting, with weeping, and with mourning." So rend your heart, and not your garments; Return to the LORD your God, For He is gracious and merciful, Slow to anger, and of great kindness; And He relents from doing harm." — Joel 2:12-13

This invitation precedes the blessings that make up the rest of Joel 2. From these verses, we learn that people who repent will be "satisfied" (verse 19), "refreshed" (verses 21-24), "restored" (verse 25), and "unashamed" (verse 27)