Did you see? He did not dare come to the conclusion that he is [just]; with great discretion he avoided asserting it plainly. Not only by participating in the universe, or in the creation or in his power, we must realize his justice, but also by participating in his own nature and acts. He hates the wicked and loves human beings. He is not like us, who keep away from sin not because of our aversion to vice but because of the fear of punishment. Where does [this fear] come from? From the fact that he “hates injustice and makes the wicked perish.” “He, who is eternal,” he adds. Elihu is right in introducing the concept of eternity because God is not required every day and for every action to give explanations about what happened; it is usual that God manages a matter whose fulfillment must extend over a long period. Therefore, do not anticipate the conclusion of a fact, and do not try to understand the judgment of God before everything has been completed, because you will get no profit from your hurriedness. That is why he says, eternal and just. All past testifies to him. Is it possible that he has changed now?
If then thou hast understanding, hear what is said, and listen to the voice of my words.
All haughty men have this peculiarity, that when they perchance entertain any acute sentiment, they soon launch out in consequence into the sin of pride, that they despise the opinion of every one else in comparison with their own, and prefer themselves in their own judgment to the merits of others. It is the fate of these wretched men, to be more in the dark the more they see; for while they look at subtleties, they overlook themselves; and the more acutely they perceive their wisdom, the more fatally do they fall through pride. But they would look into subtleties to some use, if in what they bring forward they were to see themselves. For Eliu said above, If thou hast any thing to say, answer me; speak, for I wish thee to appear just. [Job 33, 32] But now he says, If thou hast understanding, hear what is said. See how his pride gradually advances in increase of expression. He doubted above whether blessed Job could bring forward what was just. He now makes it a question if he can even hear what is said. He said there, If thou hast any thing to say, answer me. As though he were to say, Say something, if at least thou wilt be able to speak worthily. But here he says, If thou hast understanding, hear what is said. As though he said plainly, Hear me, if thou wilt be able to hear worthily. These are the daily declensions which take place in the heart of the wicked, by which they are unceasingly sinking to worse; because while they carelessly neglect smaller faults, they break out wickedly into greater. It had already resulted from his pride that he doubted whether blessed Job could say what was just. But through neglecting to watch this fault in himself, he arrived at greater wickedness: so as not only to doubt that he could possibly say what was just, but even to despair of his understanding himself when speaking what was just. Wherefore the sin of pride must be cut up at once by the very roots, that when it springs up secretly it may be cut off vigilantly, so that it may not gain vigour by growth, or strength by habit. For it is a hard matter for a man to detect in himself inveterate pride, because in truth, the more we suffer under this sin, the less do we see of it. For pride is generated in the mind exactly as darkness in the eyes. For the wider it spreads itself, the more does it contract the light. Pride then grows up gradually in the heart, and when it has extended itself wider and wider, it closes entirely the sight of the mind which suffers from it, so that the captive mind can both suffer from the haughtiness of pride, and yet be unable to behold that under which it suffers. But because haughty men, as we have said, sometimes hold sound views in an unsound way, and know how to invent good arguments, but scorn to state them aright; Eliu, after the haughty pride with which he had said, If thou hast understanding, hear what is said, subjoins, saying,
Since Eliud thought these arguments were sufficient, he invites Job to their consideration when he then says, "If then you have an intellect," to understand the power of my arguments, "hear what is said," with the exterior ears, "and," with interior attention, "perceive the voice of my eloquence," to recognize the justice of divine judgment.
[AD 407] John Chrysostom on Job 34:16-17