Thou hast clothed me with skin and flesh - This refers, undoubtedly, to the formation of man in his foetal existence, and is designed to denote that the whole organization of the human frame was to be traced to God. Grotius remarks that this is the order in which the infant is formed - that the skin appears first, then the flesh, then the harder parts of the frame. On this subject, the reader may consult Dunglison's Physiology, vol. ii. p. 340ff.
And hast fenced me - Margin, Hedged. Literally, Hast covered me. The sense is plain. God had formed him as he was, and to him he owed his life, and all that he had. Job asks with the deepest interest whether God would take down a frame formed in this manner, and reduce it again to dust? Would it not be more for his honor to preserve it still - at least to the common limit of human life?

Thou hast clothed me with skin and flesh,.... The bones with flesh, which is the under garment, and the flesh with skin, which is the upper; which is artificially composed of intricate little arteries, veins, nerves, and glands, through which the blood continually circulates, and through innumerable pores, and transpires, of which pores 125,000 may be covered with a small grain of sand (l), amazing! Timaeus Locrus (m) calls them invisible little mouths; see Ezekiel 37:6; the order of generation seems to be observed; after the semen is hardened and consolidated, the inward parts are formed, and then the outward parts, the flesh and skin, to protect and defend them; and so are compared to clothes which are outside a man, and put about him; Porphyry (n) calls the body the clothing of the soul; see 2-Corinthians 5:4; the spiritual clothing of Job was the righteousness of his living Redeemer, who was to partake of the same flesh and blood with him, and stand on the earth in the fulness of time, and work out and bring in a righteousness for him, consisting of his obedience in life in the days of his flesh, and of his sufferings and death, or blood, by which he and every believer are justified before God; and with which being clothed, shall not be found naked:
and hast fenced me with bones and sinews; the bones are said by philosophers (o) to be the fences of the marrow, and the flesh the covering of them; the bones are the strength and stability of the human body; the sinews or nerves bind and hold the several parts of it together, and are of great use for its strength and motion: the bones, some of them are as pillars to support it, as those of the legs and thighs; and others are of use to act for it, offensively and defensively, as those of the hands and arms; and others are a cover and fence of the inward parts, as the ribs: Gussetius (p) seems inclined, could he have found an instance of the word being used for making a tent, which it has the signification of, to have rendered the words,"with bones and sinews, thou hast given ate the form of a tabernacle; or, thou hast made me to be a tent;''so the human body is called a tabernacle, 2-Corinthians 5:1; the skin and flesh being like veils or curtains, which cover; the bones are in the room of stakes, and the nerves instead of cords, the breast and belly a cavity: in a spiritual sense, a believer's strength lies in the grace of Christ, in the Lord, and in the power of his might; his defence is the whole armour of God provided for him, particularly the helmet of salvation, the shield of faith, and the breastplate of righteousness, with which he is fenced and protected from every spiritual enemy; and will God suffer such an one to be destroyed, whom he hath taken such care of, both in a natural and spiritual manner?
(l) Scheuchzer. Physic. Sacr. vol. 4. p. 681. (m) De Anima Mundi, p. 18. (n) De Antro Nymph. (o) Timaeus Locrus, ib. p. 15. (p) Ebr. Comment. p. 555, 556.

fenced--or "inlaid" (Psalm 139:15); "curiously wrought" [UMBREIT]. In the fœtus the skin appears first, then the flesh, then the harder parts.

Clothed - Covered my inward and more noble parts; which are first formed. So he proceeds in describing man's formation gradually. Bones - The stay and strength of the body; and some of them, as the skull and ribs, enclose and defend its vital parts.