תּלמוד אויף צפניה 2:4

R. Abbahu said: “Ekron shall be rooted up” (Zephaniah 2:4); this is Caesarea the daughter of Edom, which is situated among the sands, and which was a thorn in the side of Israel in the days of the Greeks. When the House of the Hasmoneans grew powerful and conquered them, they called it “The capture of the tower of Shir.”

R. Yitzchak said: “Ekron shall be rooted out”: this is Caesarea, the daughter of Edom, which was a metropolis of kings. There are those who say that this means that kings were brought up there. And there are those that say that kings were appointed from there.