Charles Ellicott Commentary Zechariah 9:5

"Ashkelon shall see it, and fear; Gaza also, and shall be sore pained; and Ekron, for her expectation shall be put to shame; and the king shall perish from Gaza, and Ashkelon shall not be inhabited." — Zechariah 9:5 (ASV)

See it, and fear. —Philistia might well fear and tremble on hearing of the destruction of Tyre. Ashkelon and Ekron, it is true, are not mentioned in connection with this march of Alexander, but they must necessarily have been occupied by his troops. But Gaza was certainly taken, after a siege of five months; and special mention is made by Hegesias (a contemporary of Alexander) of the “king” of Gaza being brought alive to Alexander after the capture of that city.

Not be inhabited.—Or, not remain.