Adam Clarke on Isaiah 14:1

And will yet choose Israel - That is, will still regard Israel as his chosen people; however he may seem to desert them, by giving them up to their enemies, and scattering them among the nations. Judah is sometimes called Israel; see Eze 13:16; Mal 1:1; Mal 2:11 : but the name of Jacob and of Israel, used apparently with design in this place, each of which names includes the twelve tribes, and the other circumstances mentioned in this and the next verse, which did not in any complete sense accompany the return from the captivity of Babylon, seem to intimate that this whole prophecy extends its views beyond that event.