Job 12:9 - Coke's Commentary on the Holy Bible

Who knoweth not, &c.?— Who knoweth not among all these, that it is the hand of Jehovah which hath made them all? From the word Jehovah's being used in this place, some would infer that the book of Job must be at least posterior to the time of Moses, and written by a Jew: a very weak argument! as there seems no doubt that the name Jehovah was well known to Abraham and the patriarchs; nor was it made known to Moses by God, as a new name which he chose for himself, but as a name referring to the great covenant. See Exodus 3:14-15. Job means in these verses to express his firm opinion, that all animate and inanimate nature clearly bore testimony to the creating power and over-ruling providence of God. See Nehemiah 9:6.