What does Zephaniah 3:8 mean?

So wait for me, says the Lord, for the day I rise up to judge. I’ve decided to gather nations and kingdoms and pour out my anger on them—all my fierce anger. The whole earth will be consumed by the fire of my jealousy. Zephaniah 3:8 - Modern Text Bible

(God tells his people to wait for his judgment, which will be global and intense. No one will escape his justice.)