Job 15:5

for thy mouth uttereth thine iniquity Rather, for thine iniquity (or, guilt) teacheth thy mouth; the meaning being that his mouth was prompted by his iniquity, used as its instrument. His inquity taught his mouth what to say.

choosest the tongue of the crafty i. e. choosest and makest use of, speakest as the crafty do. The charge of Eliphaz is that Job's complaint of unrighteousness in God's treatment of him and his assertions of his own innocence, and such words as those in ch. Job 12:6, were mere crafty pretences put forward to cover his own wickedness. If the first clause have precisely the same sense as the latter, the word "iniquity" must be translated "guilt."