Charles Ellicott Commentary Job 15:30

"He shall not depart out of darkness; The flame shall dry up his branches, And by the breath of [God`s] mouth shall he go away." — Job 15:30 (ASV)

He shall not depart out of darkness. —See Job 15:22. By the breath of his mouth shall he go away. What this means is not very clear: probably as in Job 11:20; or, “When he expires it shall be the end of him; he shall leave nothing permanent that is destined to last;” or, “He shall pass away suddenly and completely, like his own breath.”