'Remnant of Israel' in the Bible

Thus says Yahweh of hosts: "They will thoroughly glean the remnant of Israel as a vine, turn back your hand over [the] branches like a grape-gatherer.

For thus says Yahweh, "Sing for joy for Jacob [with] gladness, and shout out for the head of the nations. Proclaim, praise, and say, 'Save, Yahweh, your people, the remnant of Israel.'