Jeremias 47

The word of the LORD that came to Jeremiah the prophet against the Philistines, before that Pharaoh smote Gaza.
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.
At the noise of the stamping of the hoofs of his strong horses , at the rushing of his chariots, and at the rumbling of his wheels, the fathers shall not look back to their children for feebleness of hands;
Because of the day that cometh to spoil all the Philistines, and to cut off from Tyrus and Zidon every helper that remaineth: for the LORD will spoil the Philistines, the remnant of the country of Caphtor.
Baldness is come upon Gaza; Ashkelon is cut off with the remnant of their valley: how long wilt thou cut thyself?
O thou sword of the LORD , how long will it be ere thou be quiet? put up thyself into thy scabbard, rest, and be still.
How can it be quiet, seeing the LORD hath given it a charge against Ashkelon, and against the sea shore? there hath he appointed it.