Jeremiah 47:4

The day would come when the Lord would use this enemy to destroy all the Philistines who had originally fled to Canaan from the islands of the northeastern Mediterranean, particularly Crete (Caphtor; cf. Deuteronomy 2:23; Amos 9:7). This is not a reference to the eschatological day of the Lord. Yahweh would cut off Tyre and Sidon, north of the Philistine coast in Phoenicia, from all their allies. Perhaps Tyre and Sidon were allies of the Philistines at this time, and therefore fell under their judgment.