Job 15:31 in the World English Bible
Let him not trust in emptiness, deceiving himself, for emptiness will be his reward.
Context
30 He shall not depart out of darkness; the flame shall dry up his branches, and by the breath of his mouth shall he go away.
31 Let not him that is deceived trust in vanity: for vanity shall be his recompence.
32 It shall be accomplished before his time, and his branch shall not be green.