Job 30:1-31.

      1. younger--not the three friends (Job 15:10; 32:4, 6, 7). A general description: Job 30:1-8, the lowness of the persons who derided him; Job 30:9-15, the derision itself. Formerly old men rose to me (Job 29:8). Now not only my juniors, who are bound to reverence me (Le 19:32), but even the mean and base-born actually deride me; opposed to, "smiled upon" (Job 29:24). This goes farther than even the "mockery" of Job by relations and friends (Job 12:4; 16:10, 20; 17:2, 6; 19:22). Orientals feel keenly any indignity shown by the young. Job speaks as a rich Arabian emir, proud of his descent.
      dogs--regarded with disgust in the East as unclean (1Sa 17:43; Pr 26:11). They are not allowed to enter a house, but run about wild in the open air, living on offal and chance morsels (Ps 59:14, 15). Here again we are reminded of Jesus Christ (Ps 22:16). "Their fathers, my coevals, were so mean and famished that I would not have associated them with (not to say, set them over) my dogs in guarding my flock."

JFB.