The Remain of Judah, Is That the Remain of the People of God?

In the book of zephaniah, verse eight, i have heard the insults of moav and the taunts of the ammonites who insulted my people and made threats against their land. This is what they will get in return for their pride for insulting and mocking the people of the lord almighty. When he destroys all the gods of the earth, distant nations will bow down to him. The remnant of my people will plunder them. But y i think that remnant is going to be that later, historical remnant of the people of god that aren't there yet. It's sactly what the prophet is foretelling. Points out felistia, points out moa,