לָכֵ֗ן נְאֻ֤ם הָֽאָדוֹן֙ יְהוָ֣ה צְבָא֔וֹת אֲבִ֖יר יִשְׂרָאֵ֑ל ה֚וֹי אֶנָּחֵ֣ם מִצָּרַ֔י וְאִנָּקְמָ֖ה מֵאוֹיְבָֽי׃
דרום זאָגט דער האַר, גאָט פֿון צבֿאות, דער מאַכטיקער פֿון ישׂראל: אָ, איך װעל זיך שטילן אָן מײַנע פֿײַנט, און זיך נוקם זײַן אָן מײַנע שׂונאים.
Rashi
says the Master Who possesses everything, and in Whose power it is to uproot you from your land and to settle others in it.
Ibn Ezra
נאום The word of. A noun (comp. Jer. 23:31). To use נֻם instead of נאום is a blunder,44This seems to be an attack on those Paytanim who use נם instead of נאם, with omission of א. But in his Moznaim, a grammatical pamphlet, the author adduces several instances in which א is omitted. (See Moznaim sub voce נעל ים). for א cannot be omitted.
Rashi
Oh Heb. הוי. An expression of preparation and announcement, and similar to this is (Zech. 2:10): “Ho, ho, (הוי הוי) flee from the land of the north.” And let all know that I will console Myself of My adversaries, who angered Me with their deeds.