Job 4:15

Then a spirit passed before my face
Which some interpret of a wind ^F17, a blustering wind, that blew strong in his face; and so the Targum renders it, a stormy wind, such an one as Elijah perceived when the Lord spoke to him, though he was not in that, ( 1 Kings 19:11 ) ; or such a whirlwind, out of which the Lord spake to Job, ( Job 38:1 ) ; or rather, as Jarchi, an angel, an immaterial spirit, one of Jehovah's ministering spirits, clothed in an human form, and which passed and repassed before Eliphaz, that he might take notice of it:

the hair of my flesh stood up;
erect, through surprise and dread; which is sometimes the case, when anything astonishing and terrible is beheld; the blood at such times making its way to the heart, for the preservation of that, leaves the external members of the body cold, and the skin of the flesh, in which the hair is, being contracted by the impetuous influx of the nervous fluid, causes the hair to stand upright, particularly the hair of the head, like the prickles or hedgehogs ^F18; which has been usual at the sight of an apparition ^F19.