Darius now gets very insistent and very stern in his tone. Quite clearly he has detected the drift of the letter from Tatnai, and the scornful attitude that lies behind it.
This rebuke was of the Lord. At times he discomforts the opponents of the gospel is a remarkable way, to show what he can do at any time. It was the will of the Lord that the temple be rebuilt and puny man was not going to stand in the way of it. Though we cannot depend on princes, God may turn the hearts of kings like water ‘withersoever he will’ for the defence of the gospel.