John Gill

Who is there among you of all his people?.... The people of God, the Israelites, as well of the ten tribes, as of the two of Judah and Benjamin; for this edict was published throughout all his dominions, where were the one as well as the other: his God be with him; to incline his heart to go, to protect him in his journey, and succeed and prosper him in what he goes about: 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; the one only living and true God: which is in Jerusalem; who has been in former times, and is to be worshipped there; though Aben Ezra says, this is to be connected with "the house of the Lord"; as if the sense was, to build the house, that was in Jerusalem, or to be built there; and so our version connects them, putting those words into a parenthesis, "he is God"; but this is contrary to the accents.