What does Ezekiel 35:11 mean?

So, as surely as I live, says the Lord God, I'll treat you with the same anger and jealousy you showed them. When I judge you, you'll know what it's like to have me against you. Ezekiel 35:11 - Modern Text Bible

(God promises to repay Edom with the same hostility and envy they showed Israel, making it clear that He takes their actions personally.)