The Lord, the Lord of hosts. In the original, Ha-Adon, Jehovah Sabaoth—i.e. "The Lord" (or "Master" of men and angels), "the Self-Existing One of the hosts of heaven"—i.e; their God, the only proper object of their worship.
It gives peculiar weight and significance to this prophecy, that it is introduced by a triple designation of the Divine Being. The Mighty One of Israel. A very unusual designation, only found here and, with the modification of "Jacob" for "Israel, "in the following places: Isaiah 49:26; Isaiah 60:16; Genesis 49:24; Psalms 132:2, Psalms 132:5.
God's might would be shown alike in his vengeance on his enemies, and in his purification of a remnant to serve him. I will ease me of mine adversaries; literally, I will comfort me; i.e. I will rid myself of them, and so obtain the only comfort that they will allow me to receive from them (comp.
Ezekiel 5:13, "I will cause my fury to rest upon them, and I will be comforted").