1 Now in the first year of Cyrus king of Persia, that the word of the LORD by the mouth of Jeremiah might be fulfilled, the LORD stirred up the spirit of Cyrus king of Persia, that he made a proclamation throughout all his kingdom, and put it also in writing, saying,
[AD 373] Athanasius of Alexandria on Ezra 1:1
[Synopsis on Ezra]
These two books were written by the man whose name they bear as a title. This Ezra, being a priest and a scribe, recounted the return of the children of Israel from Persia to Jerusalem. In the first book, he relates how the charge of organizing the return was in the hand of Josue the son of Josedec, and of Ezra, Zerubbabel, and Nehemiah, a Jewish eunuch. The return was occasioned as follows: three soldiers who guarded the king, one of whom was Zerubbabel, were engaged in a competition regarding a certain question, and a promise had been made that the winner should ask the king for whatever he wanted. When the first soldier had said that wine was stronger, and the second that the king was stronger, Zerubbabel contended that women were stronger, and that truth excelled over all things. Because Zerubbabel spoke these things, he won. When he was told to ask what he wanted, he asked for the captives to be released and for Jerusalem to be rebuilt. And it was done as he asked, and the captives were let go. For at that time sixty years of wrath had been completed. The people of the tribes of Juda and Benjamin, together with the Levites, who went up from the captivity to Jerusalem, were in all forty-two thousand three hundred and sixty in number. Their menservants and womenservants were seven thousand three hundred and thirty-four. Their singing men were two hundred and forty-five. Their camels four hundred and thirty-five. Their donkeys six thousand seven hundred and twenty. The builders were Zerubbabel, Josue the son of Josedec, and Nehemiah. As for Ezra, being skilled in the knowledge of the law, he brought forth the law and read it, and arranged everything pertaining to the temple, and he also it was who used to designate the Levites according to the law. Moreover, he also made sure that strange wives should be cast out by such as had married them during the time of the captivity. They all cast them out indeed, and they cleansed themselves, and, as is written, they observed the phase and a fast according to the law.
[AD 420] Jerome on Ezra 1:1
Whether it may be more difficult to do or not to do what you have requested, I have not yet established. For it is also not my desire to refuse your commands, and the greatness of weight imposed thus press upon the neck, so that before a falling under the bundle, there might rather be a lightening (of the load). The efforts of the envious agree with this, who consider all that I write reproof, with conscience occasionally fighting against them, publicly tearing apart what they read secretly, to such a degree that I am compelled to cry out and to say: "O Lord, free my soul from crooked lips and a false tongue" (Ps 119.2). It is the third year that you always write and write again, that I might translate the book of Ezra for you from Hebrew, as though you do not have the Greek and Latin scrolls, or whatever it is which is translated by us might not be something immediately spat upon by all. As a certain person says, "For to strive without effort, and not to seek anything by wearying except hatred, is extreme insanity" (Sallust, Jugurtha 3). Therefore, I implore you, my dearest Domnius and Rogatian, that, keeping the reading private, you will not bring the book forth into the public, nor throw food to the fastidious, and you will avoid the pride of them who know only (how) to judge others, and themselves (know how) to do nothing. And if there are any of the brothers whom we do not displease, give the text to them, admonishing that they transcribe the Hebrew names, of which there is a great abundance in this book, separately and with intermediate spaces. For it will profit nothing to correct the book, without diligence being preserved in the correction of the copiers.
Neither should it disturb anyone that the book edited by us is one, nor should they be delighted by the dreams of the third and fourth books (which are) of the apocrypha, both because among the Hebrews the discourses of Ezra and Nehemiah are confined to one scroll, and those things which are not found among them, nor are of the twenty-four elders, are for throwing away. And if anyone sets the (version of the) Seventy interpreters before you, the variety of the texts of which shows them torn and perverted, nor indeed can it be asserted truth is diverse, send him to the Gospels, in which are set down many things as though from the Old Testament, things which are not found among the Seventy interpreters, like this: "He will be called a Nazarene," and "From Egypt I have called my son," and "They will look on him whom they have pierced" and many other things which we are saving for a more extensive work, and ask of him where they might be written, and when he has not been able to reveal (where), you must read from these texts which recently were edited by us, daily pierced by the tongues of the slanderous.
But so that I might come to a shortcut, certainly what I will introduce is the most reasonable. I have given, in what is translated by me, anything that is not found in the Greek or is found otherwise (than there). Which interpreter do they mangle? They may ask the Hebrews and their authors, whether they accept or reject the sense of my translation. Furthermore, it is another thing if, as is said, with eyes closed they want to slander me and not imitate the study and goodwill of the Greeks, who, after the Seventy translators, with the Gospel of Christ now shining, they both attentively read the Jewish and Ebionite interpreters of the Old Law, namely Aquila, Symmachus, and Theodotion, and have also dedicated (them) to the churches, through the labor of Origen in the Hexapla. How much more should Latins be grateful, having understood that the joy of Greece is to borrow anything from itself (?). For firstly, it is of great expense and of infinite difficulty to be able to have all of the texts; then also, those who have (them) and are ignorant of the Hebrew words will err more, not knowing which ones of the many will have said the truth. Which thing also happened recently to a certain very wise man among the Greeks, so that occasionally leaving the sense of the Scriptures, the error of some particular translator was followed. And we, who at least have a little knowledge of the Hebrew tongue, and our Latin does not lack style in any way, are both better able than others to judge, and to express those things of them which we understand in our language. Therefore, even if a serpent hisses, "and the victor Sinon throws burning torches," with Christ helping, my speech will never be silenced, for (even my) severed tongue will stutter (something). Those who will, may read; those who won’t, may throw away. They may scatter (?) the writings; they may slander the letters. Much more by your love will I be provoked toward study, rather than be deterred by their detraction and hatred.
[AD 735] Bede on Ezra 1:1
In the first year of Cyrus, king of Persia, etc. Ancient histories, which likewise agree with the writings of the prophet Daniel, recount that Cyrus, king of Persia, with the assistance of Darius, king of the Medes, destroyed the empire of the Babylonians, killing their last king Balthasar, and devastating and destroying the city itself. Cyrus, knowing that the kingdom had been given to him by the God of Israel, immediately after he conquered the kingdom that had oppressed and enslaved the people of Israel, granted the people the ability to return to their homeland and to rebuild the house of their God, which had been burnt down in that place. He proclaimed this decree of liberation not only verbally to those present but also sent letters to those far-off throughout his provinces, declaring publicly that the God of Israel is the true Lord and God of heaven and the author of all kingdoms. All these events were openly predicted by the holy prophets, and Jeremiah foretold the number of years they would serve in Babylon and when they would be called back to their homeland. Isaiah even revealed the name of King Cyrus, through whom the liberation from servitude and the permission to restore the temple would occur, without any prophetic enigmas. Thus, Jeremiah says: "Thus says the Lord of hosts, the God of Israel, to all the captives whom I have sent from Jerusalem to Babylon: Build houses and dwell in them, etc." And later: "When seventy years are completed in Babylon, I will visit you and fulfill my good word toward you and bring you back to this place" (Jer. 25, 29). Moreover, Isaiah says: "Thus says the Lord, your Redeemer, and the one who formed you from the womb: I am the Lord who makes all things." And shortly after: "Who says to the deep: Be dry! and I will dry up your rivers. Who says to Cyrus: He is my shepherd, and he will fulfill all my pleasure. Who speaks to Jerusalem: You shall be built, and to the temple: Your foundation shall be laid" (Isa. 44). "Thus says the Lord to His anointed, to Cyrus, whose right hand I have held, to subdue nations before him, and to loose the armor of kings, to open before him the double doors, so that the gates will not be shut. I will go before you and make the crooked places straight; I will break in pieces the gates of bronze and cut the bars of iron. I will give you the treasures of darkness and the hidden riches of secret places, that you may know that I, the Lord, who call you by your name, am the God of Israel. For Jacob My servant's sake, and Israel My elect, I have even called you by your name: I have named you, though you have not known Me. I am the Lord, and there is no other; there is no God besides Me. I will gird you, though you have not known Me" (Isa. 45). From Isaiah's prophecy, it is believed that King Cyrus greatly loved the children of Israel, released them from captivity, and commanded the rebuilding of the Lord's temple because he had heard their prophets speak by the Spirit of God of his kingdom and the destruction of Babylon. The very manner of the conquest by which Babylon began to be overthrown was explicitly expressed by the same prophets; Isaiah said: "Who says to the deep: Be dry! and I will dry up your rivers." And Jeremiah added: "The broad walls of Babylon shall be utterly broken, and her high gates shall be burned with fire." Histories narrate that, by diverting and drying up the Euphrates river that flowed through the middle of Babylon, the enemy entered the city through its dried-up channels. These few points have been mentioned about history. Yet, according to mystical meanings, King Cyrus is a type of the Lord and Savior both in name and deed, which we state not from our conjecture but from the very clear words of Isaiah, where Isaiah says in the person of the Lord: "I have likened you, and you have not known Me" (Isa. 45). God likened him to His Son, although he did not recognize God who likened him; first, in that he dignified him by calling him His anointed; secondly, in designating him Cyrus, meaning 'heir,' long before he was born; for the name fittingly applies to Him to whom the same God the Father said: "Ask of Me, and I will give You the nations for Your inheritance" (Ps. 2). The Apostle says: "He appointed Him heir of all things, through whom also He made the worlds" (Heb. 1). And even while He appeared in the flesh, the enemies who persecuted Him said: "This is the heir. Come, let us kill Him, and seize His inheritance" (Matt. 21; Mark 12). But also because God the Father subjected nations before the face of Cyrus, turned the back of kings, broke the gates of bronze, and shattered the bars of iron, that is, of Babylon and other cities taken by him, these treasures of hidden riches and secrets of various unknown provinces likened him to our Lord and Savior, who subjoined not only all gentile nations but even the very rulers and authors of secular wisdom to His dominion through the preaching of the apostles across the world; who overthrew the gates of Hell to bring His elect, taken thence, into the liberty of the heavenly homeland; who destroyed the errors of the nations and by the mouths of humble apostles overturned doctrines fortified by human reasoning, so that, having corrected them, He might reveal the light of His faith and truth, in which are hidden all treasures of wisdom and knowledge. These treasures our Lord eternally possessed in the nature of His Divinity from the Father, but in assumed humanity, He received them in time, from the moment He began to be man. So He likened Cyrus to His only begotten Son, our God and Lord Jesus Christ, for just as he, by destroying the Chaldean empire, liberated God's people, sent them back to their homeland, and ordered the rebuilding of the temple in Jerusalem, manifesting this in letters to fulfill the words of Jeremiah, who predicted this would happen. Thus, the Mediator between God and men, by destroying the kingdom of the devil throughout the world, rescues His dispersed elect from tyranny and gathers them into His Church, justifying them by faith in the present and hastening them toward the vision of perpetual peace in the future, for Jerusalem is called the vision of peace. He also causes the restoration of the temple that had been set on fire, bringing back those who had lost faith through the snares of the ancient enemy to salvation, making them worthy of His habitation. Moreover, He sent the holy Scriptures into the whole world, by which he preached the faith in His name and the hope of salvation to all who belong to His kingdom, that is, to all the elect. Not only Jeremiah but all the prophets, in common sense, foretold this. As He Himself said to His disciples: "It is necessary that all things written in the Law of Moses, the Prophets, and the Psalms concerning Me be fulfilled" (Luke 24). The Lord also stirred up the spirit of Cyrus, king of Persia, so that, recognizing the power and providence of the God of Israel, he would do what Scripture narrates of him. And the Lord says in the Gospel to the Jews: "When you have lifted up the Son of Man, then you will know that I am He, and that I do nothing of Myself; but as My Father taught Me, I speak these things" (John 8). When Cyrus in his written declaration says: "The Lord God of heaven has given me all the kingdoms of the earth," he rightly confesses the God of Israel to be the Lord God of heaven, who also has control of all the kingdoms of the earth and can give them to whomever He wills. Yet it seems less true that he declares all the kingdoms of the earth were given to him unless it is understood that at the time he wrote this, no adversary of his reign existed; or that, having conquered, destroyed, and emptied the ancient and strong empire of the Chaldeans, he believed none could resist his kingdom in the whole world. This statement, however, truly applies to His majesty who said: "All authority has been given to Me in heaven and on earth" (Matt. 28). The same Scripture of Cyrus follows:

[AD 1781] Richard Challoner on Ezra 1:1
This Book takes its name from the writer: who was a holy priest, and doctor of the law. He is called by the Hebrews, Ezra.