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1 Now it came to pass in the days when the judges ruled, that there was a famine in the land. And a certain man of Bethlehemjudah went to sojourn in the country of Moab, he, and his wife, and his two sons. 2 And the name of the man was Elimelech, and the name of his wife Naomi, and the name of his two sons Mahlon and Chilion, Ephrathites of Bethlehemjudah. And they came into the country of Moab, and continued there. 3 And Elimelech Naomi's husband died; and she was left, and her two sons. 4 And they took them wives of the women of Moab; the name of the one was Orpah, and the name of the other Ruth: and they dwelled there about ten years. 5 And Mahlon and Chilion died also both of them; and the woman was left of her two sons and her husband. 6 Then she arose with her daughters in law, that she might return from the country of Moab: for she had heard in the country of Moab how that the LORD had visited his people in giving them bread. 7 Wherefore she went forth out of the place where she was, and her two daughters in law with her; and they went on the way to return unto the land of Judah. 8 And Naomi said unto her two daughters in law, Go, return each to her mother's house: the LORD deal kindly with you, as ye have dealt with the dead, and with me. 9 The LORD grant you that ye may find rest, each of you in the house of her husband. Then she kissed them; and they lifted up their voice, and wept. 10 And they said unto her, Surely we will return with thee unto thy people. 11 And Naomi said, Turn again, my daughters: why will ye go with me? are there yet any more sons in my womb, that they may be your husbands? 12 Turn again, my daughters, go your way; for I am too old to have an husband. If I should say, I have hope, if I should have an husband also to night, and should also bear sons; 13 Would ye tarry for them till they were grown? would ye stay for them from having husbands? nay, my daughters; for it grieveth me much for your sakes that the hand of the LORD is gone out against me. 14 And they lifted up their voice, and wept again: and Orpah kissed her mother in law; but Ruth clave unto her. 15 And she said, Behold, thy sister in law is gone back unto her people, and unto her gods: return thou after thy sister in law. 16 And Ruth said, Intreat me not to leave thee, or to return from following after thee: for whither thou goest, I will go; and where thou lodgest, I will lodge: thy people shall be my people, and thy God my God: 17 Where thou diest, will I die, and there will I be buried: the LORD do so to me, and more also, if ought but death part thee and me. 18 When she saw that she was stedfastly minded to go with her, then she left speaking unto her. 19 So they two went until they came to Bethlehem. And it came to pass, when they were come to Bethlehem, that all the city was moved about them, and they said, Is this Naomi? 20 And she said unto them, Call me not Naomi, call me Mara: for the Almighty hath dealt very bitterly with me. 21 I went out full, and the LORD hath brought me home again empty: why then call ye me Naomi, seeing the LORD hath testified against me, and the Almighty hath afflicted me? 22 So Naomi returned, and Ruth the Moabitess, her daughter in law, with her, which returned out of the country of Moab: and they came to Bethlehem in the beginning of barley harvest.
[AD 397] Ambrose of Milan on Ruth 1:1-4
If, therefore, we know that Tamar was included in the Lord’s genealogy on account of mystery, we ought also to conclude, without doubt, that Ruth was not omitted for a similar reason, which the holy apostle seems to sense when he foresees in the Spirit that the calling of foreign nations will be accomplished through the gospel, saying that the law was given not for the just but for the unjust. For how did Ruth, when she was a foreigner, marry a Jew? And for what reason did the Evangelist believe that this marriage, which was forbidden by the weight of the law, should be included in the genealogy of Christ? Did the Savior therefore descend from an illegitimate heritage? Unless you return to the apostolic principle that the law was not given for the just but for the unjust, then, his genealogy would seem to be deformed, given that Ruth was a foreigner and a Moabite, whereas the law of Moses prohibits marriage to Moabites and excludes them from the church, as it is written: “No Moabite shall enter the church of the Lord even to the third and fourth generation forever.” Hence, how did she enter the church unless because she was made holy and immaculate by deeds [moribus] that go beyond the law? For if the law was given for the irreverent and sinners, then surely Ruth, who exceeded the limits of the law and entered the church and was made an Israelite and deserved to be counted among the honored figures in the Lord’s genealogy, chosen for kinship of mind, not of body, is a great example for us, because she prefigures all of us who were gathered from the nations for the purpose of joining the church of the Lord. We should emulate her, therefore, who merited by her deeds this privilege of being admitted to his society, as history teaches, so that we also, by our deeds and accompanying merits, might be chosen for election to the church of the Lord.… When Naomi said to her, “Behold, your sister-in-law has already returned to her people and to her god, and so should you,” Ruth responded, “May it not befall me to leave you and to go back to my god, for wherever you go, I shall go, and I will dwell where you dwell. Your people will be my people and your God will be my God; I will die where you die and I will be buried where you are buried.” Thus, the two of them went on to Bethlehem. When Boaz, David’s great-grandfather, came to know her deeds, therefore, and her holiness in relation to her mother-in-law and her respect for the dead and her reverence for God, he chose her to be his wife.

[AD 420] Jerome on Ruth 1:1-4
The Hebrews’ tradition is that this is he in whose time the sun stood still, on account of those who did not keep the law, so that, when they had seen such a miracle, they should turn to the Lord God. And because they scorned to do such a thing, therefore the famine grew worse, and he who seemed foremost in the tribe of Judah not only was expelled from his native land with his wife and sons, made helpless by famine, but even continued in that same exile with his sons.

[AD 420] Jerome on Ruth 1:1-4
You call to mind Blaesilla’s companionship, her conversation and her endearing ways; and you cannot endure the thought that you have lost them all. I pardon you the tears of a mother, but I ask you to restrain your grief. When I think of the parent, I cannot blame you for weeping, but when I think of the Christian and the recluse, the mother disappears from my view. Your wound is still fresh, and any touch of mine, however gentle, is more likely to inflame than to heal it. Yet why do you not try to overcome by reason a grief which time must inevitably assuage? Naomi, fleeing because of famine to the land of Moab, there lost her husband and her sons. Yet when she was thus deprived of her natural protectors, Ruth, a stranger, never left her side. And see what a great thing it is to comfort a lonely woman: Ruth, for her reward, is made an ancestor of Christ. Consider the great trials which Job endured, and you will see that you are over-delicate. Amid the ruins of his house, the pains of his sores, his countless bereavements, and, last of all, the snares laid for him by his wife, he still lifted up his eyes to heaven and maintained his patience unbroken. I know what you are going to say “All this befell him as a righteous man, to try his righteousness.” Well, choose which alternative you please. Either you are holy, in which case God is putting your holiness to the proof; or else you are a sinner, in which case you have no right to complain. For if so, you endure far less than your deserts.

[AD 431] Paulinus of Nola on Ruth 1:14
Next pass with eager eyes to Ruth, who with one short book separates eras—the end of the period of the judges and the beginning of Samuel. It seems a short account, but it depicts the symbolism of the great conflict when the two sisters separate to go their different ways. Ruth follows after her holy mother-in-law, whereas Orpah abandons her; one daughter-in-law demonstrates faithlessness, the other fidelity. The one puts God before country, the other puts country before life. Does not such disharmony continue through the universe, one part following God and the other falling headlong through the world? If only the two groups seeking death and salvation were equal! But the broad road seduces many, and those who glide on the easy downward course are snatched off headlong by sin which cannot be revoked.

[AD 1781] Richard Challoner on Ruth 1:15
To her gods: Noemi did not mean to persuade Ruth to return to the false gods she had formerly worshipped: but by this manner of speech, insinuated to her, that if she would go with her, she must renounce her false gods and return to the Lord the God of Israel.
[AD 397] Ambrose of Milan on Ruth 1:16
Ruth entered the church and was made an Israelite, and [she] deserved to be counted among God’s greatest servants; chosen on account of the kinship of her soul, not of her body. We should emulate her because, just as she deserved this prerogative because of her behavior, [we] may be counted among the favored elect in the church of the Lord. Continuing in our Father’s house, we might, through her example, say to him who, like Paul or any other bishop, [who] calls us to worship God, your people are my people, and your God my God.

[AD 420] Jerome on Ruth 1:16
Ruth, a foreigner, did not leave Naomi’s side. See how much merit there is in standing by the deserted in solace. From her seed, Christ is born.

[AD 458] Theodoret of Cyrus on Ruth 1:16
The constancy of Ruth, who because of the piety of her spirit and the memory of her husband preferred to her parents a woman worn out in old age and laboring in poverty, is praiseworthy.

[AD 636] Isidore of Seville on Ruth 1:16
Now let us look at Ruth, for she is a type of the church. First she is a type because she is a stranger from the Gentile people who renounced her native land and all things belonging to it. She made her way to the land of Israel. And when her mother-in-law forbade her from coming with her she persisted, saying, “Wherever you go, I shall go; your people shall be my people; and your God shall be my God. Whichever land receives you as you die, there I too shall die.” This voice without doubt shows that she is a type of the church. For the church was called to God from the Gentiles in just this way: leaving her native land (which is idolatry) and giving up all earthly associations, she confessed that he in whom the saints believed is the Lord God; and that she herself will go where the flesh of Christ ascended after his passion; and that on account of his name she would suffer in this world unto death; and that she will unite with the community of the saints, that is, the patriarchs and the prophets. This company, by virtue of which she [Ruth] might be joined to the longed-for saints from the lineage of Abraham, Moses revealed to us in the canticle, saying, “Rejoice, you nations, with his people, (that is, people of the Gentiles), pour forth what you believe; exult with those who were first chosen for eternal joy.”

[AD 1781] Richard Challoner on Ruth 1:17
The Lord do so and so: A form of swearing usual in the history of the Old Testament, by which the person wished such and such evils to fall upon them, if they did not do what they said.
[AD 604] Gregory the Dialogist on Ruth 1:20
In describing loftily the sweetness of contemplation, you have renewed the groans of my fallen state, since I hear what I have lost inwardly while mounting outwardly, though undeserving, to the summit of rule. Know then that I am stricken with so great sorrow that I can scarcely speak; for the dark shadows of grief obscure the eyes of my soul. Whatever is beheld is sad, whatever is thought delightful appears to my heart lamentable. For I reflect on what a dejected height of external advancement I have ascended in falling from the lofty summit of my rest. And, being sent for my faults into the exile of employment from the face of my Lord, I say with the prophet, in the words, as it were of destroyed Jerusalem, “He who should comfort me has departed far from me.” … For I, my good man, have, as it were, lost my children, since through earthly cares I have lost works of righteousness. Therefore “call me not Naomi, that is lovely; but call me Mara, for I am full of bitterness.”