Behold, waters rise up out of the north— "Behold the army of Nebuchadrezzar, which, bursting forth like a deluge, shall cover the land of the Philistines." See the 7th and 8th verses of the last chapter.
Related Commentaries of Jeremiah 47:2
Jeremiah 47:2
2 Thus saith the LORD; Behold, waters rise up out of the north, and shall be an overflowing flood, and shall overflow the land, and all that is therein; the city, and them that dwell therein: then the men shall cry, and all the inhabitants of the land shall howl.