Posts. — The posts. Literally, the runners. (See Note on Esther 1:22.)
Riders on mules. — Rather, on horses of great speed; the “swift beast “of Micah 1:13.
Camels, and young dromedaries. — The words thus translated occur only here, and there is much doubt as to the meaning. It may suffice to mention two renderings : — (1) “Mules, the offspring of royal mares “ — so Gesenius; or (2) we may connect the former word with the Persian word meaning royal — so Canon Rawlinson, who translates the whole clause, riders upon coursers of the king’s stud, offspring of high-bred steeds.”