Isaias 14:12

5. Again, we are taught as follows by the prophet Isaiah regarding another opposing power. The prophet says, “How is Lucifer, who used to arise in the morning, fallen from heaven! He who assailed all nations is broken and beaten to the ground. Thou indeed saidst in thy heart, I shall ascend into heaven; above the stars of heaven shall I place my throne; I shall sit upon a lofty mountain, above the lofty mountains which are towards the north; I shall ascend above the clouds; I shall be like the Most High. Now shalt thou be brought down to the lower world, and to the foundations of the earth. They who see thee shall be amazed at thee, and shall say, This is the man who harassed the whole earth, who moved kings, who made the whole world a desert, who destroyed cities, and did not unloose those who were in chains. …

17. And again he says in another place: “How hath the exactor ceased, and how hath the oppressor ceased! God hath broken the yoke of the rulers of sinners, He who smote the people in wrath, and with an incurable stroke: He that strikes the people with an incurable stroke, which He did not spare. He ceased (rested) confidently: the whole earth shouts with rejoicing. The trees of Lebanon rejoiced at thee, and the cedar of Lebanon, (saying), Since thou art laid down, no feller is come up against us. Hell from beneath is moved at meeting thee: all the mighty ones, the rulers of the earth, are gathered together, the lords from their thrones. All the kings of the nations, all they shall answer together, and shall say, And thou, too, art taken as we; and thou art reckoned among us. …

As for what John says about the devil, “The devil sinneth from the beginning” they who suppose it is meant hereby that the devil was made with a sinful nature, misunderstand it; for if sin be natural, it is not sin at all. And how do they answer the prophetic proofs, either what Isaiah says when he represents the devil under the person of the king of Babylon, “How art thou fallen, O Lucifer, son of the morning!” or what Ezekiel says, “Thou hast been in Eden, the garden of God; every precious stone was thy covering,” where it is meant that he was some time without sin; for a little after it is still more explicitly said, “Thou wast perfect in thy ways?” And if these passages cannot well be otherwise interpreted, we must understand by this one also, “He abode not in the truth,” that he was once in the truth, but did not remain in it. …

10. However here too they introduce their private fictions, and contend that the Son and the Father are not in such wise ‘one,’ or ‘like,’ as the Church preaches, but, as they themselves would have it. For they say, since what the Father wills, the Son wills also, and is not contrary either in what He thinks or in what He judges, but is in all respects concordant with Him, declaring doctrines which are the same, and a word consistent and united with the Father’s teaching, therefore it is that He and the Father are One; and some of them have dared to write as well as say this. …

1. Since the East, shattered as it is by the long-standing feuds, subsisting between its peoples, is bit by bit tearing into shreds the seamless vest of the Lord, “woven from the top throughout,” since the foxes are destroying the vineyard of Christ, and since among the broken cisterns that hold no water it is hard to discover “the sealed fountain” and “the garden inclosed,” I think it my duty to consult the chair of Peter, and to turn to a church whose faith has been praised by Paul. I appeal for spiritual food to the church whence I have received the garb of Christ. The wide space of sea and land that lies between us cannot deter me from searching for “the pearl of great price.” “Wheresoever the body is, there will the eagles be gathered together.” Evil children have squandered their patrimony; you alone keep your heritage intact. …

4. So long as we are held down by this frail body, so long as we have our treasure in earthen vessels; so long as the flesh lusteth against the spirit and the spirit against the flesh, there can be no sure victory. “Our adversary the devil goeth about as a roaring lion seeking whom he may devour.” “Thou makest darkness,” David says, “and it is night: wherein all the beasts of the forest do creep forth. The young lions roar after their prey and seek their meat from God.” The devil looks not for unbelievers, for those who are without, whose flesh the Assyrian king roasted in the furnace. It is the church of Christ that he “makes haste to spoil.” According to Habakkuk, “His food is of the choicest.” A Job is the victim of his machinations, and after devouring Judas he seeks power to sift the [other] apostles. The Saviour came not to send peace upon the earth but a sword. …

But we, if our food is less appetizing than usual, get sullen, and fancy that we do God a favor by drinking watered wine. And if the water brought to us is a trifle too warm, we break the cup and overturn the table and scourge the servant in fault until blood comes. “The kingdom of heaven suffereth violence and the violent take it by force.” Still, unless you use force you will never seize the kingdom of heaven. Unless you knock importunately you will never receive the sacramental bread. Is it not truly violence, think you, when the flesh desires to be as God and ascends to the place whence angels have fallen to judge angels?

And so we are clearly shown that out of that number of them some of the leaders fell, by the lamentations of Ezekiel and Isaiah, in which we know that the prince of Tyre or that Lucifer who rose in the morning is lamented with a doleful plaint: and of him the Lord speaks as follows to Ezekiel: “Son of man, take up a lamentation over the prince of Tyre, and say to him: Thus saith the Lord God: Thou wast the seal of resemblance, full of wisdom, perfect in beauty. Thou wast in the pleasures of the paradise of God: every precious stone was thy covering: the sardius, the topaz and the jasper, the chrysolyte and the onyx and the beryl, the sapphire and the carbuncle and the emerald: gold the work of thy beauty, and thy pipes were prepared in the day that thou wast created. …