But in Mount Zion there shall be those who escape, and it shall be holy, and the house of Jacob shall possess their own possessions.
Obadiah 1:17

God has promised that he will always preserve a remnant of the physical descendants of Jacob so that he can fulfill his promises to Jacob. They will repent. They will be restored to the land, and all their enemies will submit to the King of Israel or be erased from history.