Isaiah 21:7

“And he saw a chariot [with] a couple of horsemen, &c.] The drivers of it, or the riders in it; perhaps meaning Cyrus and Darius: a chariot of asses, [and] a chariot of camels; by the former may be meant the Persians, who very much used mules or asses; and the Medes by the latter, who abounded in camels: the words are in the singular number, and may be rendered, “a rider of an ass, and a rider of a camel”f411; and so may describe the couple of riders along with the chariot, which may signify the whole army of the Medes and Persians, chariots being much used in war; and the rider of the ass or mule may design Cyrus, who was called a mule, because of his mixed descent, being a Persian by his…”

“chariot, &c.--rather, "a body of riders," namely, some riding in pairs on horses (literally, "pairs of horsemen," that is, two abreast), others on asses, others on camels (compare Isa 21:9; Isa 22:6). "Chariot" is not appropriate to be joined, as English Version translates, with "asses"; the Hebrew means plainly in Isa 21:7, as in Isa 21:9, "a body of men riding." The Persians used asses and camels for war [MAURER]. HORSLEY translates, "One drawn in a car, with a pair of riders, drawn by an ass, drawn by a camel"; Cyrus is the man; the car drawn by a camel and ass yoked together and driven by two postilions, one on each, is the joint army of Medes and Persians under their respective leaders.…”

“And he saw a chariot with a couple of horsemen - This passage is very obscure from the ambiguity of the word רכב rekeb - ‘chariot.’ Gesenius contends that it should be rendered ‘cavalry,’ and that it refers to cavalry two abreast hastening to the destruction of the city. The word רכב rekeb denotes properly a chariot or wagon Judges 5:28; a collection of wagons 2Ch 1:14; 2 Chronicles 8:6; 2 Chronicles 9:25; and sometimes refers to the “horses or men” attached to a chariot. ‘David houghed all the chariots’ 2 Samuel 8:4; that is, all the “horses” belonging to them. ‘David killed of the Syrians seven hundred chariots’ 2 Samuel 10:18; that is, all “the men” belonging to seven hundred chariots.…”

“A chariot - Hereby he signifies the variety and abundance of warlike provisions which the Medes and Persians should have for their expedition, and particularly of chariots, whereof some were for the carriage of necessary things, and others for the battle. Isaiah 21:8”

“21:7 The riders were messengers who reported what had taken place on the battlefield.”

“And he saw: Isa 21:9, Isa 37:24 he hearkened: Heb 2:1 Isaiah 21:8”

“What the man upon the watch-tower sees first of all, is a long, long procession, viz., the hostile army advancing quietly, like a caravan, in serried ranks, and with the most perfect self-reliance. "And he saw a procession of cavalry, pairs of horsemen, a procession of asses, a procession of camels; and listened sharply, as sharply as he could listen." Receb, both here and in Isa 21:9, signifies neither riding-animals nor war-chariots, but a troop seated upon animals - a procession of riders. In front there was a procession of riders arranged two and two, for Persians and Medes fought either on foot or on horseback (the latter, at any rate, from the time of Cyrus; vid., Cyrop. iv 3); and…”