John Gill Bible Commentary

The king answered and said to Daniel, whose name was Belteshazzar,.... The name given him by the prince of the eunuchs, Dan 1:7, and by which he was known to Nebuchadnezzar; and very likely he called him now by this name, which is the reason of its being mentioned: art thou able to make known unto me the dream which I have seen, and the interpretation thereof? this he said, either as doubting and questioning, or as admiring that one so young should be able to do that, which his seniors, the wise men in Babylon, could not do; or he put this question, as impatient to hear what he must expect from him, whether the performance of his promise, or such an answer as the wise men had given him.