Doth the hawk fly by thy wisdom - The appeal here is to the hawk, because it is among the most rapid of the birds in its flight. The particuIar thing specified is its flying, and it is supposed that there was something special in that which distinguished it from other birds. Whether it was in regard to its speed, to its manner of flying, or to its habits of flying at periodical seasons, may indeed be made a matter of inquiry, but it is clear that the particular thing in this bird which was adapted to draw the attention, and which evinced especially the wisdom of God, was connected with its flight. The word here rendered "hawk," (נץ nêts) is probably generic, and includes the various species of the falcon or hawk tribe, as the jet-falcon, the goshawk, the sparrow, hawk, the lanner, the saker, the hobby, the kestril, and the merlin. Not less than one hundred and fifty species of the hawk, it is said, have been described, but of these many are little known, and many of them differ from others only by very slight distinctions.
They are birds of prey, and, as many of them are endowed with remarkable docility, they are trained for the diversions of falconry - which has been quite a science among sportsmen. The falcon, or hawk, is often distinguished for fleetness. One, belonging to a Duke of Cleves, flew out of Westphalia into Prussia in one day; and in the county of Norfolk (England) one was known to make a flight of nearly thirty miles in an hour. A falcon which belonged to Henry IV. of France, having escaped from Fontainebleau, was found twenty-four hours after in Malta, the space traversed being not less than one thousand three hundred and fifty miles; being a velocity of about fifty-seven miles an hour, on the supposition that the bird was on the wing the whole time. It is this remarkable velocity which is here appealed to as a proof of the divine wisdom. God asks Job whether he could have formed these birds for their rapid flight. The wisdom and skill which has done this is evidently far above any that is possessed by man.
And stretch her wings toward the south - Referring to the fact that the bird is migratory at certain seasons of the year. It is not here merely the rapidity of its flight which is referred to, but that remarkable instinct which leads the feathered tribes to seek more congenial climates at the approach of winter. In no way is this to be accounted for, except by the fact that God has so appointed it. This great law of the winged tribes is one of the clearest proofs of divine wisdom and agency.

Doth the hawk fly by thy wisdom - The hawk is called נץ nets, from its swiftness in darting down upon its prey; hence its Latin name, nisus, which is almost the same as the Hebrew. It may very probably mean the falcon, observes Dr. Shaw. The flight of a strong falcon is wonderfully swift. A falcon belonging to the Duke of Cleves flew out of Westphalia into Prussia in one day; and in the county of Norfolk, a hawk has made a flight at a woodcock of near thirty miles in an hour. Thuanus says, "A hawk flew from London to Paris in one night." It was owing to its swiftness that the Egyptians in their hieroglyphics made it the emblem of the wind.
Stretch her wings toward the south? - Most of the falcon tribe pass their spring and summer in cold climates; and wing their way toward warmer regions on the approach of winter. This is what is here meant by stretching her wings toward the south. Is it through thy teaching that this or any other bird of passage knows the precise time for taking flight, and the direction in which she is to go in order to come to a warmer climate? There is much of the wisdom and providence of God to be seen in the migration of birds of passage. This has been remarked before. There is a beautiful passage in Jeremiah, Jeremiah 8:7, on the same subject: "The stork in the heavens knoweth her appointed times; and the turtle, and the crane, and the swallow, observe the time of their coming: but my people know not the judgment of the Lord."

Doth the hawk fly by thy wisdom, [and] stretch her wings toward the (p) south?
(p) That is, when cold comes, to fly into the warm countries.

Doth the hawk fly by thy wisdom,.... With so much swiftness, steadiness, and constancy, until she has seized her prey. The Vulgate Latin version and some others read, "does she become feathered", or "begin to have feathers?" and so Bochart: either when first fledged; or when, as it is said (d) she casts her old feathers and gets new ones, and this every year. Now neither her flight nor her feathers, whether at one time or the other, are owing to men, but to the Lord, who gives both;
and stretch her wings towards the south? Being a bird of passage, she moves from colder climates towards the winter, and steers her course to the south towards warmer ones (e); which she does by an instinct in nature, put into her by the Lord, and not through the instruction of man. Or, as some say, casting off her old feathers, she flies towards the south for warmth; and that her feathers may be cherished with the heat, and grow the sooner and better. Hence it is, perhaps, as Aelianus reports (f), that this bird was by the Egyptians consecrated to Apollo or the sun; it being able to look upon the rays of it wistly, constantly, and easily, without being hurt thereby. Porphyry (g) says, that this bird is not only acceptable to the sun; but has divinity in it, according to the Egyptians; and is no other than Osiris, or the sun represented by the image of it (h). Strabo (i) speaks of a city of the hawks, where this creature is worshipped. It has its name in Greek from the sacredness of it; and according to Hesiod (k), is very swift, and has large wings. It is called swift in flying, by Manetho (l); and by Homer, , the swiftest of fowls (m). It has its name from to "fly", as Kimchi observes (n). Cyril of Jerusalem, on the authority of the Greek version, affirms (o), that by a divine instinct or order, the hawk, stretching out its wings, stands in the midst of the air unmoved, looking towards the south. All accounts show it to be a bird that loves warmth, which is the reason of the expression in the text.
(d) Aelian. de Animal. l. 12. c. 4. (e) Ibid. l. 2. c. 43. Plin. l. 10. c. 8. (f) De Animal. l. 7. c. 9. & l. 10. c. 14. (g) De Abstinentia, l. 4. s. 9. (h) Kircher. Prodrom. Copt. p. 232. (i) Geograph. l. 17. p. 562. (k) Opera & Dies, l. 1. v. 208. (l) Apotelesm. l. 5. v. 176. (m) Iliad. 15. v. 238. Odyss 13. v. 87. (n) Sepher Shorash. rad. (o) Cateches. 9. s. 6.

The instinct by which some birds migrate to warmer climes before winter. Rapid flying peculiarly characterizes the whole hawk genus.

26 Doth the hawk fly by thy wisdom,
Doth it spread its wings towards the south?
27 Or is it at thy command that the eagle soareth aloft,
And buildeth its nest on high?
28 It inhabiteth the rock, and buildeth its nest
Upon the crag of the rock and fastness.
29 From thence it seeketh food,
Its eyes see afar off.
30 And its young ones suck up blood;
And where the slain are, there is it.
The ancient versions are unanimous in testifying that, according to the signification of the root, נץ signifies the hawk (which is significant in the Hieroglyphics): the soaring one, the high-flyer (comp. Arab. nṣṣ, to rise, struggle forwards, and Arab. nḍḍ, to raise the wings for flight). The Hiph. יאבר- (jussive form in the question, as Job 13:27) might signify: to get feathers, plumescere (Targ., Jeremiah.), but that gives a tame question; wherefore Gregory understands the plumescit of the Vulgate of moulting, for which purpose the hawk seeks the sunny side. But האביר alone, by itself, cannot signify "to get new feathers;" moreover, an annual moulting is common to all birds, and prominence is alone given to the new feathering of the eagle in the Old Testament, Psalm 103:5; Micah 1:16, comp. Isaiah 40:31 (lxx πτεροφυήσουσιν ὡς ἀετοί).
(Note: Less unfavourable to this rendering is the following, that אברה signifies the long feathers, and אבר the wing that is composed of them (perhaps, since the Talm. אברים signifies wings and limbs, artus, from אבר = הבר, Arab. hbr, to divide, furnish with joints), although נוצה (from נצה, to fly) is the more general designation of the feathers of birds.)
Thus, then, the point of the question will lie in לתימן: the hawk is a bird of passage, God has endowed it with instinct to migrate to the south as the winter season is approaching.
In Job 39:27 the circle of the native figures taken from animal life, which began with the lion, the king of quadrupeds, is now closed with the eagle, the king of birds. It is called נשׁר, from נשׁר, Arab. nsr, vellere; as also vultur (by virtue of a strong power of assimilation = vultor) is derived from vellere, - a common name of the golden eagle, the lamb's vulture, the carrion-kite (Cathartes percnopterus), and indeed also of other kinds of kites and falcons. There is nothing to prevent our understanding the eagle κατ ̓ εξοχήν, viz., the golden eagle (Aquila chrysatos), in the present passage; for even to this, corpses, though not already putrified, are a welcome prey. In Job 39:27 we must translate either: and is it at thy command that ? or: is it so that (as in הכי) at thy command ? The former is more natural here. מצוּדה, Job 39:28, signifies prop. specula (from צוּד, to spy); then, however, as Arab. masâd (referred by the original lexicons to masada), the high hill, and the mountain-top. The rare form יעלעוּ, for which Ges., Olsh., and others wish to read לעלעוּ or ילעלעוּ (from לוּע, deglutire), is to be derived from עלע, a likewise secondary form out of עלעל (from עוּל, to suck, to give suck),
(Note: The Arab. ‛alla does not belong here: it gains the signification iterum bibere from the primary signification of "coming over or upon anything," which branches out in various ways: to take a second, third, etc., drink after the first. More on this point on Isaiah 3:4.
Supplementary note: The quadriliteral עלעל to be supposed, is not to be derived from עלל, and is not, as it recently has been, to be compared with Arab. ‛ll, "to drink." This Arab. verb does not signify "to drink" at all, but, among many other branchings out of its general primary signification, related to עלה, Arab. ‛lâ, also signifies: "to take a second, third, etc., drink after the first," concerning which more details will be given elsewhere. עלעל goes back to עוּל, lactare, with the middle vowel, whence also עויל, Job 16:11; Job 12:18; Job 21:11 (which see). The Hauran dialect has ‛âlûl (plur. ‛awâlı̂l), like the Hebr. עולל (עולל = מעולל), in the signification juvenis, and especially juvencus (comp. infra, p. 689, note 3, "but they are heifers," Arab. illâ ‛awâlı̂l).)
like שׁרשׁ out of שׁרשׁר (from שׁרר, Arab. srr, to make firm), Ew. 118, a, comp. Frst, Handwrterbuch, sub עוּל, since instances are wanting in favour of עלע being formed out of לעלע (Jesurun, p. 164). Schult. not inappropriately compares even גלג = גלגל in גּלגּתא, Γολγοθᾶ = גּלגּלתּא. The concluding words, Job 39:30, are perhaps echoed in Matthew 24:28. High up on a mountain-peak the eagle builds its eyrie, and God has given it a remarkably sharp vision, to see far into the depth below the food that is there for it and its young ones. Not merely from the valley in the neighbourhood of its eyrie, but often from distant plains, which lie deep below on the other side of the mountain range, it seizes its prey, and rises with it even to the clouds, and bears it home to its nest.
(Note: Vid., the beautiful description in Charles Boner's Forest Creatures, 1861.)
Thus does God work exceeding strangely, but wonderously, apparently by contradictions, but in truth most harmoniously and wisely, in the natural world.

Fly - So strongly, constantly, unweariedly, and swiftly. South - At the approach of winter, when wild hawks fly into warmer countries, as being impatient of cold. The birds of the air are proofs of the wonderful providence of God, as well as the beasts of the earth. God instances in two stately ones.