'My People' in the Bible

Thus said Jehovah of Hosts: Lo, I am saving My people from the land of the rising, And from the land of the going in, of the sun,

And I have brought the third into fire, And refined them like a refining of silver, And have tried them like a trying of gold, It doth call in My name, and I answer it, I have said, 'My people it is,' And it saith, 'Jehovah is my God!'