This hasn't fully happened yet, has it?

Zephaniah 2:9 Therefore as I live, saith the LORD of hosts, the God of Israel, Surely Moab shall be as Sodom, and the children of Ammon as Gomorrah, even the breeding of nettles, and saltpits, and a perpetual desolation: the residue of my people shall spoil them, and the remnant of my people shall possess them.

Also, in the tribulation, how exactly will Jesus famish all the gods of the earth?

Zephaniah 2:11 The LORD will be terrible unto them: for he will famish all the gods of the earth; and men shall worship him, every one from his place, even all the isles of the heathen.