Job 31:30 in the World English Bible
(I have certainly not allowed my mouth to sin by asking his life with a curse);
Context
29 If I rejoiced at the destruction of him that hated me, or lifted up myself when evil found him:
30 Neither have I suffered my mouth to sin by wishing a curse to his soul.
31 If the men of my tabernacle said not, Oh that we had of his flesh! we cannot be satisfied.