Like the similitude of the sons of men - I think Gabriel is here meant, who appeared to Daniel in a human form; and so in Dan 10:18, and see also Dan 9:21.
Touched my lips - Before this he was unable to speak.
By the vision - The vision that I have already had, and of which I have not a proper knowledge has greatly afflicted me, because I see it intimates grievous calamities to my people. See Dan 9:26.