How can it rest when the Lord has commanded it

Jeremiah 47:1-7
A message about the Philistines.
Before Pharaoh attached Gaza.
For the day has come to destroy all the Philistines and to cur off all survivor who could help Tyre and Siden. The Lord is about to destroy the Philistines, the remnant from the coasts of Caphtor(Crete, the island from which the Philistines originally came).
O remnant on the plain, how long will you cut yourselves?
Ah, sword of the Lord, how long till you rest?  Cry from Philistines.
But how can it rest when the Lord has commanded it.
Why?
The Philistines occupied the southern coast lands of Canaan from 12th century on, often warring with the Israelite.
Pharaoh Necho controlled Gaza at the time of his march north in 609, but the city often changed hands. Calamity will come on Philistine from the Nebuchadnezzar must have overrun the Philistine cities when he quelled Judah in 587.
How?
Do not let the wrath of the Lord come, no one can escape from the wrath of the Lord. Pray to the Lord from my heart with praise and joy, the Lord sees our heart and mind.