For your iniquity instructs your mouth, and you choose the language of the crafty.
Eliphaz here falls very foul upon Job, because he contradicted what he and his colleagues had said, and did not acquiesce in it and applaud it, as they expected. Proud people are apt thus to take it very much amiss if they may not have leave to dictate and give law to all about them, and to censure those as ignorant and obstinate, and all...
Commenting on Job 15:1-16
For thy mouth uttereth thine iniquity,.... Which was in his heart, and so was an evidence against him, and proved him perverse, and made good the above charges exhibited against him: or "thine iniquity teaches thy mouth" (y); the wickedness that was in his heart prompted his mouth to speak the things he did, see Mat 12:34; and this, as it was an instance of...
The sophistry of thine own speeches proves thy guilt.