John Gills Exposition of the Bible Commentary - Job 39:2
Canst thou number the months that they fulfil ?.... Which some understand both of wild goats and hinds. Common goats fulfil five months, they conceive in November, and bring forth in March, as Pliny F6 Nat. Hist. l. 8. c. 50. observes; but how many the wild goats of the rock fulfil is not said by him or any other I know of: the same writer says F7 Ib. c. 32. of hinds, that they go eight months; or knowest thou the time when they bring forth ? naturalists F8 Ib. & l.... 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