Jeremiah 47: prophecy against Philistia

 In chapter 47 we read a prophecy against Philistia, but who will destroy Philistia; the Egypt or Babylon?

We read;
1 The word of the Lord that came to Jeremiah the prophet concerning the Philistines, before Pharaoh conquered Gaza.

In verse 1, it is clear that this prophecy was made just before pharaoh from Egypt conquer Gaza, a city from Philistia.
Then, we read the prophecy:


2 This is what the Lord says:
“Behold, waters are going to rise from the north
And become an overflowing torrent,
And overflow the land and everything that is in it,
The city and those who live in it;
And the people will cry out,
And every inhabitant of the land will wail.


The prophecy says that waters are going to rise from the north, but Egypt is at south of Philistia. Waters may be related to chaos, or may be related to an army that comes from the north. Maybe, the information that pharaoh conquered Gaza isn't to that it is the fulfillment of the prophecy. Pharaoh was loosing power comparing to Babylon.

4 ... For the Lord is going to destroy the Philistines,
The remnant of the coastland of Caphtor.
5 Baldness has come upon Gaza;
Ashkelon has been destroyed.
Remnant of their valley,
How long will you gash yourself?
6 Ah, sword of the Lord,
How long will you not be quiet?
Withdraw into your sheath;
Rest and stay still.
7 How can [d]it be quiet,
When the Lord has given it an order?
Against Ashkelon and against the sea shore—
There He has summoned it.”

Although nor Egypt neither Babylon were believers in the Lord, but the sword of the Lord uses nations, people because He rules all the earth.