1. His attendants saw not the vision; it was not fit that they should be honoured with the sight of it. There is a divine revelation vouchsafed to all, from converse with which none are excluded who do not exclude themselves; but such a vision must be peculiar to Daniel, who was a favourite. Paul's companions were aware of the light, but saw no man, Acts ix. 7; xxii. 9. Note, It is the honour of those who are beloved of God that, what is hidden from others, is known to them. Christ manifests himself to them, but not to the world, John xiv. 22. But, though they saw not the vision, they were seized with an unaccountable trembling; either from the voice they heard, or from some strange concussion or vibration of the air they felt, so it was that a great quaking fell upon them, so that they fled to hide themselves, probably among the willows that grew by the river's side. Note, Many have a spirit of bondage to fear who never receive a spirit of adoption, to whom Christ has been, and will be, never otherwise than a terror. Now the fright that Daniel's attendants were in is a confirmation of the truth of the vision; it could not be Daniel's fancy, or the product of a heated imagination of his own, for it had a real, powerful, and strange effect upon those about him.