C. F. Keil and Franz Delitzsch on Job 42:16

Job 42:16 16  And Job lived after this a hundred and forty years, and saw his children and his children’s children to four generations.

In place of ויּרא, the Keri gives the unusual Aorist form ויּראה, which, however, does also occur elsewhere (e.g., 1Sa 17:42). The style of the primeval histories, which we here everywhere recognise, Gen 50:23 (comp. Isa 53:10), is retained to the last words.