The Lord will chasten the main cities of Palestine: Gaza, Ashkelon, Ashdod, and Ekron; that took pride in their strength and prosperity. Gaze shall be forsaken like a barren wilderness; and was almost utterly destroyed by Alexander the Great; Hence its Hebrew name, “Gazubah”, which hints to (nonexistence).. Ekron, in Hebrew, came as “Ekron teeaker”. As for Ashdod that shall be driven out at noonday; the people of the east used to sleep, and even stop military action at noon because of the hot weather [2Sam 4:5].
It is to be noticed that ‘Gath’, the fifth famous city in Palestine, was not mentioned here, as it was not mentioned in Amos [Amos 1:6], [Jer 25:20], [Zech 9:5-6]; because at that time, it was under Jewish authority.
What is said here about those four main cities, refers to what would befall the unrepentant man; namely, to suffer isolation; to become forsaken, desolate, where he is not dwelt by the divine righteousness, horrified, through living as a fugitive, though nobody is after him, and uprooted, having the same end of the devil himself.
This is the divine warning to every man, who chooses for himself to be an opponent against the divine truth, and to give his back to God, the Grantor of life, fulfillment, peace, and happiness. He would moan, together with Zion, which, assuming in her bitterness, that the Lord has forsaken and forgotten her [Isa 49:14]; says: “There I was left alone” [Isa 49:21]; And would become as is said by prophet Jeremiah: “Every city shall be forsaken, and not a man shall dwell in it” [Jer 4:29]; And as is said by prophet Isaiah: “Then they will look to the earth, and see trouble and darkness, gloom of anguish, and they will be driven into darkness” [Isa 9:22]; And as is said by the Psalmist: “Let their habitation be desolate; Let no one dwell in their tents” [Ps 69:25]; “Oh, how they are brought to desolation, as in a moment!” [Ps 73:19]. And as it came in the Maccabees: “He did away with all the renegades and outlaws” [1Macc 14:14].
“How they are brought to desolation, as in a moment” [Ps 73:19]; He marvels at them, realizing what will come over them in the end. They, like smoke, will eventually vanish as it rises up … “They are utterly consumed … As a dream when one awake” [Ps 73:20]… Like when someone dreams that he found a treasure, to find out that he has got nothing when he gets up; So are the evildoers, they will wake up to realize the misery they have prepared for themselves. - St. Augustine
Evil destroys man and deprives him of every vitality, to become as though forsaken in isolation, desolate, and uprooted; God allows that, to uproot the evil in him, and to plant him anew; Namely, to renew his life and his nature, and to set His righteousness in him, by His Holy Spirit; as is said by the Psalmist: “You drove out the nations with Your hand, But them You planted” [Ps 44:2].