Job is not introducing new arguments; rather, he is crying out from a place of deep, overwhelming pain. He strongly protests that his terrible misfortunes have fallen upon him for no reason, representing a severe perversion of justice. He firmly rejects the claims of his companions, who insist that his intense suffering is simply a punishment for his sins [רמב״ן].
Pushed to his limit, Job demands to know how long his companions intend to cause him such profound sadness and sorrow [מצודת דוד, ביאור שטיינזלץ]. The primary approach among commentators is that their words are designed to inflict deep emotional pain. This specific harm to his soul stems from their relentless accusations that he is fundamentally sinful [אלשיך]. They heavily imply that all their previous speeches about the terrible fate of the wicked and the destruction of evil souls are actually directed straight at him [מלבי״ם].
Job feels completely crushed by their taunting remarks [מצודת דוד]. He experiences this emotional devastation on two distinct levels. The first layer of pain comes directly from the harsh and cruel words they hurl at him. The second layer stems from their deceptive behavior; they pretend to care about his dignity and act as if they are sparing his honor, but in reality, their words cut to the very core of his being [אלשיך].
Instead of weeping alongside him and showing shock at his unnatural afflictions—as true friends should—they only multiply his agony. Pointing to the extreme severity of his illness as clear proof that God's protection and providence have completely left him, Job issues a stern warning. He cautions his companions that they will ultimately face punishment for their cold lack of empathy and their refusal to share in his sorrow [רמב״ן].