Now therefore, if it seem good to the king, let there be search made in the king's treasure house, which is there at Babylon, whether it be so, that a decree was made of Cyrus the king to build this house of God at Jerusalem, and let the king send his pleasure to us concerning this matter. The - treasure house - גנזיא ginzaiya. This is a Persian word, gunji, a treasury.
There is a great deal of good sense and candour in this letter. Nothing of passion or prejudice appears in it. They laid before the king a fair statement without any attempt to prejudice his mind, and gave him those directions which were most likely to lead him to the truth, and to form a correct judgment on a business which, however it issued, must be of considerable importance to the state. God was in all this business; he was now giving an additional proof of his continued regard for a disobedient people, whom, though he had punished in his justice, he had spared in his mercy.
Commentary on the Bible, by Adam Clarke [1831].