Jeremiah 50:18

¹⁸ So this is what the Lord of armies, the God of Israel, has said: See, I will send punishment on the king of Babylon and on his land, as I have given punishment to the king of Assyria.

Armies

Armies of the heavens and the sands of the sea ('Jeremiah 33:15-22') signify the knowledges of truth and good in the spiritual and natural man.