Charles Spurgeon Commentary Zechariah 9:7

"And I will take away his blood out of his mouth, and his abominations from between his teeth; and he also shall be a remnant for our God; and he shall be as a chieftain in Judah, and Ekron as a Jebusite." — Zechariah 9:7 (ASV)

And his abominations from between his teeth: but he that remains, even he, shall be for our God, and he shall be as a governor in Judah, and Ekron as a Jebusite.

There is no doubt that, after the days of Alexander, many Philistines became proselytes to the faith of the Jews, and were absorbed into the Jewish nation, so that an Ekronite became like an Israelite; and this is a symbol of what God is doing all over the world. He takes men, who are strangers and foreigners to the citizenship of Zion, and puts them among His people, and treats the Ekronite as a Jerusalemite. Blessed be His name for this great act of sovereign grace.