What does Malachi 4:1 mean?

Look, the day is coming, burning like a furnace. All the arrogant and all who do evil will be like dry straw—the day that’s coming will burn them up, says the Lord of all. Nothing will be left of them, not even a root or a branch. Malachi 4:1 - Modern Text Bible

(A day of judgment is coming when those who reject God will be completely wiped out.)