Hab 3:7

“We meanwhile, exposed to the outbreaks of the barbarians and the storms of war, are tossing in the midst of troubles, and from these toils and dangers can only gather that those of our future life will be still more grievous. Wherefore that saying of the Prophet seems to accord with our condition, "I saw the tents of Cushan in affliction." For since I have now lived in the body fifty and three years, among the shadows of this world, whereby the truth of future perfection is obscured, and have already endured such heavy afflictions, am I not camping in the tents of Cushan, and having my habitation among the dwellers of Midian? For these, owing to their consciousness of their darksome works, dread being judged even by mortal men, "but he that is spiritual judgeth all things, yet he himself is judged of no man."”

“(Verse 7.) I have seen the tents of Ethiopia because of iniquity, the skins of the land of Midian will be troubled. LXX: I have seen the dwellings of the Ethiopians because of their labors; they will be afraid, and the dwellings of the land of Midian. The dark Ethiopians (or rather the darkest) and lovers of darkness, not belonging to any light, who feed on the flesh of the dragon (of whom it is written: You have given him as food to the peoples, to the Ethiopians, Ps. 73:14), are understood to be demons, whose dwelling place is made by anyone in this world who labors for honors and riches: which is significantly shown by one word of iniquity, for indeed every rich person or unjust person, or heir of the unjust, is such. See how men cross the seas: they stand guard at the doors before the powerful: they endure all that the condition of slaves barely allows, in order to gather riches, in order to obtain some dignity. And once they have achieved this, they surrender themselves to luxury and pleasures and all kinds of wickedness, so that what greed has gathered, extravagance may consume. Therefore, these people, for their efforts, become the dwelling place of demons, and those who should be the temple of God become the dwelling place of Ethiopians. But also this which follows: The skins of the land of Midian will be troubled, or they will fear and the tabernacles of the land of Midian, understand the same tabernacles of the Ethiopians, and the tabernacles of the land of Midian. For after they have become enriched, and have risen to the highest degree through right and wrong, then the conscience of their sins will always fear death, always judgment, and they will sigh for eternal punishments like thieves in prison sigh for a slight fever. But the word 'Madian' in our language signifies 'judgment', that is, condemnation, and it is shown that they always live in fear of eternal judgment and punishment, and endure daily torment, knowing that they deserve the torments.”

“The tents of the Ethiopians will be terrified, and the tents of the land of Midian. For who does not know that the Ethiopians and Midianites are peoples of the nations? By whose names all the nations of the Gentiles are hinted, who, upon hearing the preaching of the gospel, would be shaken with a healthy fear, so that just as the prophet heard the future report of the Lord and feared, considered the future works of His incarnation, and trembled, so the nations, upon hearing the same report through the apostles, and with His works already accomplished, would begin to serve the Lord with fear and rejoice with trembling. And appropriately, he first mentioned the Ethiopians, who are at the ends of the world, to mystically indicate that the sound of the preachers would go out into all the earth, and their words to the ends of the world. In this mystery, the eunuch of Candace, queen of the Ethiopians, as it is read in the Acts of the Apostles, the first fruits of the Gentiles, with Philip evangelizing, received the faith and sacraments of Christ. The people of the Midianites, however, descended from one of the sons of Abraham from Keturah, who was called Midian, and is in the desert of the Saracens towards the east of the Red Sea in Arabia. Therefore, let the Ethiopians fear the name of Christ, so that His faith may be signified as reaching the ends of the world. Let the Midianites also fear, thus indicating that the Mediterranean peoples too may be saved through this. But that he did not say: The Ethiopians and Midianites will be terrified, but the tents of the Ethiopians will be terrified, and the tents of the land of Midian, is said in that manner of speech, as it is said in the Gospel: And the whole city went out to meet Jesus; and in the psalm: And your cup intoxicating (Psalm 21:5), while it was not the city itself, but those who were in the city, who went out; nor was it the cup itself, but that which is in the cup that is accustomed to intoxicate: this figure of speech is called metonymy in Greek, that is, transnomination, when through that which contains, that which is contained is shown.”