Job 7:1 [Is there] not an appointed time to man upon earth? [are not] his days also like the days of an hireling?
Ver. 1. Is there not an appointed time to man upon the earth?] There is, certainly. Our bounds are prescribed us, and a pillar set by him who bears up the heavens, which we are not to transpass. Stat sua cuique dies, said the heathen poet (Virg. Aeneid 10), our last day stands, the rest run. It is said of the Turks, that they shun not the company of those that have the plague, but pointing upon their foreheads, say, it was written there at their birth when they should die. Now if there be an appointed time, &c., what mean the Lutherans to teach that God hath not determined the period of men's days, but it is in man's power to lengthen or shorten them, Humanae vitae terminus non est decreto simplici et absoluto constitutus (Homing). In this one verse we have two metaphors, both which do evince the contrary. The first is from soldiers, implied in the word צבא translated an appointed time, or a warfare, because there was a set time for soldiers to fight, and a set time also for them to serve. The second is from a hireling.
Are not his days also like the days of an hireling?] Describit humanae vitro brevitatem, saith Vatablus. Here he describeth the shortness of man's life, and with it that his days are determined; for with a hireling we agree to work with us for a certain time, and usually for a day, or by the day; and hence we call them day labourers. It importeth then that the time of man's life is short and set; for hirelings are appointed to an hour. See Job 14:14; Ecclesiastes 2:3; Joh 7:30; Isaiah 38:5. Fifteen years just were added to Hezekiah's life. Our hairs are numbered, much more our days. This Job allegeth to set forth his own extreme misery, as one condemned to perpetual torments without any respite or refreshing; and therefore in a worse case than any soldier or servant.