Though these preparations for so rich a feast seem intended to portray in concrete terms the parade of wealth and the abundance of delights possessed by a powerful king, it is actually a very sanctified allegory which symbolizes the magnitude of spiritual riches, and the excellence of the necessities of life, provided by the most powerful of kings, namely the Lord Christ, which he—in accord with his method of dispensation—has generously distributed to each of his faithful ones. For this king of great wealth, who was convinced by the entreaties of his faithful wife to do away with the imminent destruction of the Jews which wicked men were plotting, prefigures no one more than our Redeemer who is accosted every day by the prayers of the Church who is his dearest wife, and frees his chosen ones from the hands of their enemies, and subjects their adversaries to the punishment they deserve. And that Esther prefigures the Church, no one can doubt; nor may she be described as the bride of anyone but Christ. That is why no one should reject this interpretation merely because this actual king was faithless, as though this would mean he could never be a figure of the just king; for we do not say that anyone's treacheries or transgressions are the sum of his behavior, whether he is trustworthy or even faithless: "He did not sin, and no deceit was found in his mouth" (1 Peter 2). "For how can light associate with darkness; or what can Christ have in common with Belial (2 Corinthians 6)?" Rather, the good actions and just judgments of any individual should be associated with no less an authority than the one from whom comes every good, about whom it is written: "He will judge the world in fairness, and the peoples in his truth" (Psalm 9). For the transgressions and sins of the faithful do not provide the most accurate representation of their character, as do the errors and wicked actions of the gentiles; and the reason we are saying this is because certain of our teachers have used David's behavior toward Uriah and his wife as a prefiguration of Christ and the Church. Why would anyone want to suggest that Moses' doubts at the "waters of dissension," Aaron's deception about manufacturing the calf, Solomon's lust, Ezekiel's arrogance, Peter's denial, and Saul's blasphemy are fitting prefigurations of our Redeemer? And yet no one can properly deny that the good actions and the correct doctrines of those men offered a great deal of evidence on his behalf. No one, therefore, ought to take us to task for comparing, by some sort of analogy, the righteous works and the just judgments of a great king to the king and judge of all the ages; since whatever is good belongs to him, and every sin flees his presence. But if anyone should feel that what we are saying is inappropriate, let him read the prophet Isaiah who compared Cyrus, the king of Persia and a gentile, to our Redeemer when he said in the person of the Lord: "I will give you hidden treasures and the secrets of hidden things so that you may know that I am the Lord, since I the God of Israel call on your name for the sake of my servant Jacob, and Israel my chosen one; and I have summoned you in your name, I have made you like me though you have not acknowledged me. I am the Lord and there is none greater; aside from me there is no God. I have strengthened you, though you have not acknowledged me" (Isaiah 45). Let him read as well the short works of the Fathers, who said that the deeds—or rather, the misdeeds—of the shameful kings Saul and Jeconiah were symbolic prefigurations of the holy actions of our Redeemer—that is, they interpret the death of Saul, who was anointed king but was quite rightly killed for his crimes, in reference to the death of Christ the innocent king; and they explain the fact that Jeconiah was exiled from Judah to Babylonia—which he deserved because of his sins—as a prefiguration of the grace of that same Redeemer of ours, which was why he deigned to wander through the world for sake of saving the nations once he had left the Jews behind for their faithlessness. They also reported that the actions of Pharaoh or Nebuchadnezzar should be understood as prefigurations of the enemies of the Church; for example: Pharaoh commands the male infants of the people of God to be killed in the river and the females spared, because the Devil wishes to extinguish the sturdy aspects of our behavior, and to nourish the feckless and weak ones. In the same way, Nebuchadnezzar ordered all the peoples subject to him to bow down and worship his statue to the sounds of orchestras and musicians; and the Devil uses the sweetness of earthly pomp to try and steer the human race away from proper intent, and to pervert the hearts of the deceived into indulging their desire, which is "the worship of images." If, therefore, certain actions—namely the just punishment of shameful men—prefigured not only wicked acts but good ones, could not the good actions or words of good men, which are contained in the writings of the prophets, also have prefigured the good deeds of those who came after them? After all, the power of the sacred narrative is (as someone has said) that it tells us about what happened at o time or another so that it may spell out what is going to come; it approves of the actor so that it may reprove him in the guise of an allegory, and condemns what has happened to persuade us allegorically of what is going to happen. Let us also consider the short works of St. Augustine, who said that the seven husbands of a single wife who died without children, with whom the Sadducees were testing the Lord because they denied the idea of resurrection, were likewise a sure prefiguration of the sacrament of the Church. In fact, he taught that the wife, and her barrenness and death, as well as the deaths of her husbands, prefigured noteworthy events even though the Lord himself did not tell this story, and neither did any of the evangelists who were writing in his person; instead they recorded the unspeakable words that wicked men had thrown in the Lord's face, on account of the Lord's very sanctified response. So when the faithful reader finds these sentiments and others like them among the statements of the sacred Fathers, he should not give the credit to us if we choose to include assertions of a similar character in our own brief works.
Source: Commentary on Esther