Job 8:21 - Ellicott's Commentary On The Whole Bible

Till he fill thy mouth with laughing. — Rather, he will yet fill thy mouth with laughter — afflicted though thou hast been, thou shalt again rejoice. The attitude of Bildad is one of unsympathetic selfishness. He wishes to think well of his friend because he is his friend, but he cannot reconcile his afflicted condition with any theory of righteous government, and therefore is driven to suspect that all is not right with him, though he feels warranted in promising him that if he casts away that secret sin all shall yet be well with him. We may say that if the contrast here indicated is not intended by the speaker, then we must consider the “he” of Job 8:16 the person before spoken of, and must understand his luxuriance of a merely apparent luxuriance; but then in that case one is at a loss to see why the “he,” of Job 8:16 should be emphasised as it is in the Hebrew.