Adam Clarke on Ezra 5:17

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.