“The word of Yahweh
Came
To the prophet Jeremiah
Concerning the Philistines,
Before Pharaoh attacked Gaza.”
The Philistines, perhaps from Crete, had been the enemies of King David with many mentions in the biblical literature. They were, of course, the five main Philistine cities mentioned from the time of Joshua, chapter 13. Ashkelon, Gaza, Ekron, Gath, and Ashdod, all on the Mediterranean coast line of present day Israel. Gath and Ashdod were almost completely destroyed by the Egyptians in the 7th century. Here there is a mention of Pharaoh Neco invading Gaza. In the Septuagint Greek translation, this is chapter 29, not chapter 47 as here.