Thus says the Lord God: Because Idumea has taken vengeance, so as to vindicate herself against the sons of Judah, and has sinned grievously, and has sought revenge against them
Other versions
King James Version
Thus saith the Lord GOD; Because that Edom hath dealt against the house of Judah by taking vengeance, and hath greatly offended, and revenged himself upon them; English Standard Version
"Thus says the Lord GOD: Because Edom acted revengefully against the house of Judah and has grievously offended in taking vengeance on them,New International Version
"This is what the Sovereign LORD says: 'Because Edom took revenge on the house of Judah and became very guilty by doing so,