v1-3: Eliphaz refers to a distant God, unaffected by human affairs.
v4-11: In 4.3-4, Eliphaz commended Job for his concern for others. Here he brings an accusation of great wickedness, of endless sins. This is the most explicit accusation made against him, with sins of commission (as in v6), and sins of omission (in v7).
It seems that Eliphaz has become frustrated that Job's arguments have not been defeated, so he stoops to personal criticism. He states that Job's present sufferings are the direct result of his sins, "that is why..." (v10).
v12-14: The further accusation, that Job regards God as ignorant. No man, says Eliphaz, can set himself up against God and prosper.
v15: Eliphaz accuses Job of following the path of wicked men.
v16: This may be a reference to the flood at the time of Noah, when many were carried away.
v17-18: See 21.14-16; Eliphaz quotes Job's own words about the prosperity of the wicked; he claims that these things are true in Job's life and attitude; he is the wicked one whose house was filled with good things. Eliphaz distances himself from your counsel, "the counsel of the wicked."
v19-20: The argument continues, the righteous rejoice than a wicked man is suffering. This was the man who had mistreated them, v6-9.
v21-30: The challenge to repentance. This is consistent with the belief that Job has sinned. It is true that repentance is the route to blessing.