Judah — God farther promises to bring out of Judah, an inheritor of his mountains which refers to the Jews return out of the captivity of Babylon to Jerusalem, to worship God in his temple, upon mount Zion. Mine elect — My chosen ones. The term signifies such as are dignified with some special favour. The whole nation of the Jews are called a chosen people.
Related Commentaries of Isaiah 65:9
Isaiah 65:9
9 And I will bring forth a seed out of Jacob, and out of Judah an inheritor of my mountains: and mine elect shall inherit it, and my servants shall dwell there.