Jamieson, Fausset and Brown on Job 14:12

12. heavens be no more--This only implies that Job had no hope of living again in the present order of the world, not that he had no hope of life again in a new order of things. Psa 102:26 proves that early under the Old Testament the dissolution of the present earth and heavens was expected (compare Ge 8:22). Enoch before Job had implied that the "saints shall live again" (Jude 14; He 11:13-16). Even if, by this phrase, Job meant "never" (Psa 89:29) in his gloomier state of feelings, yet the Holy Ghost has made him unconsciously (1Pe 1:11, 12) use language expressing the truth, that the resurrection is to be preceded by the dissolution of the heavens. In Job 14:13-15 he plainly passes to brighter hopes of a world to come.