Of all his people, to wit, of Israel. A material clause; by virtue of which they justly refused the help of those aliens who pretended to join with them in the building, Ezra 4:2,3. His God be with him; let his God help him, as I also shall do. Which is in Jerusalem, or only in Jerusalem, as it is in the Hebrew. So it notes the place where he allows and requires them to build it.
Related Commentaries of Ezra 1:3
Ezra 1:3
3 Who is there among you of all his people? his God be with him, and let him go up to Jerusalem, which is in Judah, and build the house of the LORD God of Israel, (he is the God,) which is in Jerusalem.