Who (is there) among you of all his people? Cyrus does not limit his address to the Jews, or even to Judah and Benjamin, but extends it to the whole people of Jehovah, i.e. to all the tribes equally.
Gozan and Media, to which the ten tribes had been transported by the Assyrian monarchs, were within his dominions no less than Babylonia. That many non-Jewish Israelites did return appears from 1 Chronicles 9:3.
His God be with him. A pious wish, almost a blessing, indicative of the deep religious feeling and great goodness of heart which characterized Cyrus alone of Persian monarchs. Among the Greeks, AEschylus, who first speaks of him, calls him kindly" or "gracious" ( εὔφραιν); Herodotus says he ruled his subjects like a father; Xenophon makes him a model prince; Plutarch observes that "in wisdom and virtue and greatness of soul he excelled all other kings;" Diodorus ascribes to him a remarkable power of self-command, together with good feeling and gentleness.
The Latin writers, Cicero and others, add their meed of praise; and altogether it may be said that, so far as the evidence reaches, no nobler character appears in ancient history. The Scriptural notices, whether in this book or in Isaiah, are in remarkable accord.
Let him go up. Jerusalem was on a much higher level than Babylon, and the travellers would consequently have to ascend considerably. And build the house. The "charge" to Cyrus did not require him to take a personal share in the building.
He was simply to "say to Jerusalem, Thou shalt be built; and to the temple, Thy foundation shall be laid" (Isaiah 44:28). He is therefore content to assign the actual work to others. He is the God. The Septuagint and the Vulgate attach the last clause of the verse to these words, and render "He is the God who is in Jerusalem," which greatly weakens the force of the expression.
According to this punctuation, Cyrus makes Jehovah a mere local Deity; according to the far preferable arrangement of the A. V he declares emphatically that Jehovah is the one true God, beside whom there is no other.
Compare the very similar confession of Nebuchadnezzar (Daniel 6:26).