John Calvin on Daniel 2:26

The king uses these words through his despair of all interpretation, since he perceived all the Magi in this respect without judgment and understanding; for he was at first persuaded that the Magi alone were the possessors of wisdom. Since he had asked them in vain, the error with which he was imbued, as I have said, prevented him from hoping for anything better elsewhere. Through surprise, then, he here inquires, as if the thing were impossible, Have you that power? There is no doubt that God drew this interrogation from the proud king to render his grace in Daniel more illustrious. The less hope there was in the king himself, the more there was in the revelation of both dignity and reverence, as we shall afterwards see; for the, king was astonished, and fell prostrate through stupor upon the earth before a captive! This is the reason wily Daniel relates the use of this interrogation by the king. It now follows, —

Daniel 2:27

27. Daniel answered in the presence of the king, and said, The secret which the king hath demanded cannot the wise men, the astrologers, the magicians, the soothsayers, shew unto the king;

27. Respondit Daniel regi, et dixit, Arcanum quod rex postulat sapientes, magi, astrologi, genethliasi non possunt indicare regi.

28. But there is a God in heaven that revealeth secrets, and maketh known to the king Nebuchadnezzar what shall be in the latter days. Thy dream, and the visions of thy head upon thy bed, are these;

28. Sed est Deus in coelis, qui revelat arcana; et indicavit regi Nebuchadnezzar quid futurum sit in fine In the extremity. — Calvin. dierum somnium tuum, et visio capitis tuisuper lectum tuum, haec est.