The mighty God (comp. Isaiah 9:6). The name is not, however, Messianic in this place.
These verses are exegetical of the term "remnant," and bring out its full force. The promise had been made to Abraham that his seed should be "like the sand of the sea for multitude" (Genesis 22:17). This promise had been fulfilled (1 Kings 4:20); but now the sins of the people would produce a reversal of it. It would be a remnant, and only a remnant, of the nation that would escape. Judah would have to make a fresh start as from a new beginning (see Ezra 2:64).