John Gills Exposition of the Bible Commentary - Job 39:9
Will the unicorn be willing to serve thee ,.... Whether there is or ever was such a creature, as described under the name of an unicorn, is a question: it is thought the accounts of it are for the most part fabulous; though Vartomannus F25 Navigat. l. 1. c. 19. says he saw two at Mecca, which came from Ethiopia, the largest of which had a horn in his forehead three cubits long. There are indeed several creatures which may be called "monocerots", who have but one horn; as the... read more
Matthew Henry's Complete Commentary - Job 39:1-12
God here shows Job what little acquaintance he had with the untamed creatures that run wild in the deserts and live at large, but are the care of the divine Providence. As, I. The wild goats and the hinds. That which is taken notice of concerning them is the bringing forth and bringing up of their young ones. For, as every individual is fed, so every species of animals is preserved, by the care of the divine Providence, and, for aught we know, none extinct to this day. Observe here, 1.... read more