Eliphaz continues to manifest an inflated ego. He is utterly certain his contentions are self-evident and that God could never do anything perplexing to humans.
He advises Job to choose anyone he likes as judge, because they would say the same thing Eliphaz does: People perish by their own anger and folly. So closely does Eliphaz claim to watch for the first hint of sin that he immediately curses the household of those lacking moral sense. He goes on to assure anyone listening that such a curse is not idle; God executes judgment on fools without delay.
He reiterates his assertion that there is no such thing as unexplained suffering. It simply does not sprout voluntarily from the soil without being planted and nourished by some fool. Since mankind is already troubled by default, he suggests Job repent from whatever is his secret sin. Eliphaz rattles off all the ways in which we cannot second guess God. He certainly takes care of those who are righteous in His sight, regardless of how rough their lives may be. Surely He would not fail to prosper the righteous! This implies Job must have done something evil. On and on he drones about how God will take care of His own.
Finally, he says Job is just being hard-headed. Get over yourself and repent, Job!