Joel 2:25

The Lord further promised that He would make up to His people what they had suffered because of the locust invasion (cf. Joel 1:4; Exodus 22:1; 2 Kings 4:7). The "years that the locusts had eaten" refers to the yield or produce of those years. Sin had resulted in covenant curses, but repentance would result in covenant blessings (cf. Deuteronomy 28-29).