Commentaries:
They did not see what Daniel saw, but the hair on the back of their necks stood up, they felt creepy and crawly all over, and they wanted to get out of there. They did not know why, but something of awesome power was close to them. Maybe the spirit of man within them was aware that something was near them, and they fled.
John W. Ritenbaugh
Satan (Part 1)
Only one saw this, and the others fled in terror—but even they were aware of a presence. They knew something was there. Perhaps the hair on the back of their heads stood up on end, and their skin felt creepy. Maybe they had a feeling of dread as though they knew they were in the presence of an awesome power of great magnitude but could not see or feel it. But it was there. A presence frightened them, but they could not clearly identify it.
John W. Ritenbaugh
Image and Likeness of God (Part Three)
Other Forerunner Commentary entries containing Daniel 10:7:
Luke 2:25
Luke 2:30-32
Luke 2:36-38
Revelation 12:7-9