Joel 2:20
But I will remove far off from you the northern army, and will drive him into a land barren and desolate, with his face toward the east sea, and his hinder part toward the utmost sea, and his stink shall come up, and his ill savour shall come up, because he hath done great things.
Cross-references
In Joel 2:2-11, the northern army is depicted as a devastating locust plague; here God promises to drive it away.
Joel 2:21 immediately responds to the army's removal, calling the land to rejoice because the Lord has done great things.
Joel 2:26 continues the restoration after removal, promising abundance and praise, fulfilling the 'great things' of v.20.
In Joel 1:4-6, the locust plague is described as a nation; here God promises to remove the northern army, the same invader.
In Exodus 10:19, God drives locusts into the Red Sea with a west wind; similarly, the northern army here is driven into the seas.
Ezekiel 39:12-16 describes cleansing the land after a defeated army, including burial and stench, paralleling Joel's aftermath.
Isaiah 34:3 vividly depicts the stench of slain corpses, directly matching Joel's 'foul smell will rise'.
In Jeremiah 1:14, disaster from the north is prophesied; here the northern army is identified and removed.
Daniel 11:45 describes the northern king's end between the seas, echoing Joel's northern army driven into the seas.