King James Version (KJV)
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; {by...: Heb. by revenging revengement}
Modern English
“‘Thus says the Lord Yahweh: “Because Edom has dealt against the house of Judah by taking vengeance, and has greatly offended, and taken revenge on them;”
Hebrew
כֹּ֤ה אָמַר֙ אֲדֹנָ֣י יְהוִ֔ה יַ֣עַן עֲשׂ֥וֹת אֱד֛וֹם בִּנְקֹ֥ם נָקָ֖ם לְבֵ֣ית יְהוּדָ֑ה וַיֶּאְשְׁמ֥וּ אָשׁ֖וֹם וְנִקְּמ֥וּ בָהֶֽם׃
koh ʾamar ʾadonay yhvih yaʿan ʿasvot ʾedvom binqom naqam lbeyt yhvdah vayeʾshmv ʾashvom vniqmv bahem