This is what the LORD says: “See how the waters are rising from the north and becoming an overflowing torrent. They will overflow the land and its fullness, the cities and their inhabitants. The people will cry out, and all who dwell in the land will wail
The Prophet, no doubt, wished to remind the Jews that it would only be a prelude when Gaza was plundered, and that a far more grievous punishment was impending over that ungodly nation, which had done so many wrongs to God’s people.
As the Egyptians had often proved false friends, so the Philistines had always been sworn enemies, to the Israel of God, and the more dangerous and vexatious for their being such near neighbours to them. They were considerably humbled in David's time, but, it seems they had got head again and were a considerable people till Nebuchadnezzar cut them off with their neighbours, which is the event here foretold.
Commenting on Jeremiah 47:1-7
Thus saith the Lord, behold, waters rise up out of the north,.... Meaning an army of men, which should come in great numbers, and with great force and rapidity, like an overflowing flood. So the Targum, "behold, people shall come from the north;'' that is, from Chaldea, which lay north of Palestine: and shall be an overflowing flood, and shall overflow the land, and all...