Adam Clarke Bible Commentary
Behold, he drinketh up a river - A similar mode of expression, and of precisely the same meaning, as that in Job 39:24 : "He swalloweth the ground with fierceness." No river can stop his course: he wades through all; stems every tide and torrent; and hurries not as though he were in danger.
He trusteth that he can draw up Jordan - Even when the river overflows its banks, it is no stoppage to him: though the whole impetuosity of its stream rush against his mouth, he is not afraid. Mr. Good has seized the true idea in his translation of this verse: -
"If the stream rage, he revileth not:
He is unmoved, though Jordan rush against his mouth."
From this mention of Jordan it is probable that the behemoth was once an inhabitant of the mountains, marshes, and woods, of the land of Palestine.
Jamieson-Fausset-Brown Bible Commentary
Rather, "(Though) a river be violent (overflow), he trembleth not"; (for though living on land, he can live in the water, too); he is secure, though a Jordan swell up to his mouth. "Jordan" is used for any great river (consonant with the "behemoth"), being a poetical generalization (see on Job 40:15). The author cannot have been a Hebrew as UMBREIT asserts, or he would not adduce the Jordan, where there were no river horses. He alludes to it as a name for any river, but not as one known to him, except by hearsay.
John Gill Bible Commentary
He taketh it with his eyes,.... Or "can men take him before his eyes?" so Mr. Broughton; and others translate it to the same purpose; no, he is not to be taken openly, but privately, by some insidious crafty methods; whether it be understood of the elephant or river horse; elephants, according to Strabo (q) and Pliny (r) were taken in pits dug for them, into which they were decoyed; in like manner, according to some (s), the river horse is taken; a pit being dug and covered with reeds and sand, it falls into it unawares;
his nose pierceth through snares; he discerns them oftentimes and escapes them, so that he is not easily taken in them. It is reported of the sea morss (t), before mentioned; see Gill on Job 40:20, that they ascend mountains in great herds, where, before they give themselves to sleep, to which they are naturally inclined, they appoint one of their number as it were a watchman; who, if he chances to sleep or to be slain by the hunter, the rest may be easily taken; but if the watchman gives warning by roaring as the manner is, the whole herd immediately awake and fall down from the mountains with great swiftness into the sea, as before described; or, as Mr. Broughton, "cannot men take him, to pierce his nose with many snares?" they cannot; the elephant has no nose to be pierced, unless his trunk can be called so, and no hook nor snare can be put into the nose of the river horse. Diodorus Siculus (u) says, it cannot be taken but by many vessels joining together and surrounding it, and striking it with iron hooks, to one of which ropes are fastened, and so the creature is let go till it expires. The usual way of taking it now is, by baiting the hook with the roots of water lilies, at which it will catch, and swallow the hook with it; and by giving it line enough it will roll and tumble about, until, through loss of blood, it faints and dies. The way invented by Asdrubal for killing elephants was by striking a carpenter's chopping axe into his ear (w); the Jews (x) say a fly is a terror to an elephant, it enters into his nose and torments him grievously.
(q) Geograph. l. 15. p. 484. (r) Nat. Hist. l. 8. c. 8. See Ovington's Voyage to Surat, p. 192, 193. (s) Apud Bochart. ut supra, col. 768. (t) Eden's Travels, p. 318. Supplement to the North East Voyages, p. 94. (u) Bibliothec, l. 1. p. 32. (w) Orosii Hist. l. 4. c. 18. p. 62. Liv. Hist. l. 27. c. 49. (x) T. Bab. Sabbat, fol. 77. 2. & Gloss. in ib.
Next: Job Chapter 41