*Minor differences ignored. Grouped by changes, with first version listed as example.
Our Redeemer. The Prophet shews for what purpose the Lord will inflict punishment on the Babylonians; that is, for the salvation of his people, as he had formerly declared. (Isaiah 45:4.) But this statement is much more forcible, because he speaks in what may be called an abrupt manner, and like a person awakened out of sleep, when he sees Babylon ruined, which formerly was wont to subdue other nations and trample them under her feet; and he shews that this happens for no other reason than that the Lord shews himself to be the "Redeemer" and defender of his people. The Holy One of Israel. As if he had said, that not in vain hath he chosen this people, and separated it from other nations. In this transaction he intended to give a display of his power, and on that account added to the title descriptive of his power, Jehovah of Hosts, the designation "Holy."
As for our Redeemer - This verse stands absolutely, and is not connected with the preceding or the following. It seems to be an expression of admiration, or of grateful surprise, by which the prophet saw Yahweh as the Redeemer of his people. He saw, in vision, Babylon humbled, and, full of the subject, he breaks out into an expression of grateful surprise and rejoicing. 'O! our Redeemer! it is the work of our Saviour, the Holy One of Israel! How great is his power! How faithful is he! How manifestly is he revealed! Babylon is destroyed. Her idols could not save her. Her destruction has been accomplished by him who is the Redeemer of his people, and the Holy One of Israel.' Lowth regards this verse as the language of a chorus that breaks in upon the midst of the subject, celebrating the praises of God. The subject is resumed in the next verse.
Our Redeemer "Our Avenger" - Here a chorus breaks in upon the midst of the subject, with a change of construction, as well as sentiment, from the longer to the shorter kind of verse, for one distich only; after which the former subject and style are resumed. See note on Isaiah 45:16 (note).
(f) [As for] our redeemer, the LORD of hosts [is] his name, the Holy One of Israel.
(f) The Israelites will confess that the Lord does this for his Church's sake.
As for our Redeemer,.... Or, "saith our Redeemer", as it may be supplied (e): or, "our Redeemer" will do this; inflict this punishment on Babylon, even he who has undertook our cause, and will deliver us from the Babylonish yoke, and return us to our land: these are the words of the Lord's people, expressing their faith in the things foretold of Babylon, and in their own deliverance:
the Lord of hosts is his name; and therefore able to redeem his people, and destroy his enemies, being the Lord of armies above and below, and having all at his command:
the Holy One of Israel; the sanctifier of them, their covenant God, and therefore will save them, and destroy their enemies, being hateful to him, because unholy and impure.
(e) "Inquit viudex noster", Junius & Tremellius; "hoc dicit", Piscator.
As for--rather supply, "Thus saith our Redeemer" [MAURER]. LOWTH supposes this verse to be the exclamation of a chorus breaking in with praises, "Our Redeemer! Jehovah of hosts," &c. (Jeremiah 50:34).
*More commentary available at chapter level.