But there is a God in heaven that revealeth secrets,.... By this Daniel meant to inform the king that there was but one God, in opposition to the notion of polytheism, that obtained among the Heathens; that this one God is in heaven, and presides over all persons and things on earth; and that to him alone belongs the revelation of secrets, and not to Heathen gods, or to any magician, astrologer, &c.; and of this kind was the king's dream, a secret impenetrable by men: and maketh known to the king Nebuchadnezzar what shall be in the latter days: in the latter days of his monarchy, which should be subverted, and succeeded by another; and in ages after that, during the Persian, Grecian, and Roman monarchies; and in the days of the Messiah, even in the latter of his days: thy dream, and the visions of thy head upon thy bed, are these; which were of God, and of great importance; and, that the king might observe it, Daniel introduces these words with what goes before, and says what follows: