Job 40:23

“Behold, he drinketh up a river, [and] hasteth not, etc.] The elephant is indeed a very thirsty animal, and drinks largely; the philosopher f1500 says it drinks nine Macedonian bushels at a feeding, and that it will drink fourteen Macedonian measures of water at once, and eight more at noon; but to drink up a river seems to be too great an hyperbole; wherefore the words may be rendered, “Behold, let a river oppress him”, or “bear” ever so hard upon him, and come with the greatest force and pressure on him f1501, “he hasteth not” to get out of it; or he is not frightened or troubled, as the Targum; which agrees with the river horse, who walks into the river, and proceeds on in it, with the…”

“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.”

“Behold he drinketh up a river - Margin, “oppresseth.” The margin expresses the proper meaning of the Hebrew word, עשׁק ‛âshaq. It usually means to oppress, to treat with violence and injustice; and to defraud, or extort. But a very different sense is given to this verse by Bochart, Gesenius, Noyes, Schultens, Umbreit, Prof. Lee, and Rosenmuller. According to the interpretation given by them the meaning is, “The stream overfloweth, and he feareth not; he is secure, even though Jordan rush forth even to his mouth.” The reference then would be, not to the fact that he was greedy in his mode of drinking, but to the fact that this huge and fierce animal, that found its food often on the land,…”

“River - A great quantity of water, hyperbolically called a river. Hasteth not - He drinks not with fear and caution; but such is his courage, that he fears no enemy either by water or by land. He drinks as if he designed, to drink up the whole river. He mentions Jordan, as a river well known, in and nigh unto Job's land. Job 40:24”

“drinketh: Heb. oppresseth, Isa 37:25 hasteth: Psa 55:8; Isa 28:16 Jordan: Gen 13:10; Jos 3:15 Job 40:24”