'My People' in the Bible

I have heard the reproach of Moab, and the revilings of the children of Ammon, wherewith they have reproached my people, and magnified themselves against their border.

Therefore, as I live, saith Jehovah of hosts, the God of Israel, Moab shall certainly be as Sodom, and the children of Ammon as Gomorrah, a possession of nettles, and salt-pits, and a perpetual desolation; the remnant of my people shall spoil them, and the residue of my nation shall possess them.