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1 And Naomi had a kinsman of her husband's, a mighty man of wealth, of the family of Elimelech; and his name was Boaz. 2 And Ruth the Moabitess said unto Naomi, Let me now go to the field, and glean ears of corn after him in whose sight I shall find grace. And she said unto her, Go, my daughter. 3 And she went, and came, and gleaned in the field after the reapers: and her hap was to light on a part of the field belonging unto Boaz, who was of the kindred of Elimelech. 4 And behold, Boaz came from Bethlehem, and said unto the reapers, The LORD be with you. And they answered him, The LORD bless thee. 5 Then said Boaz unto his servant that was set over the reapers, Whose damsel is this? 6 And the servant that was set over the reapers answered and said, It is the Moabitish damsel that came back with Naomi out of the country of Moab: 7 And she said, I pray you, let me glean and gather after the reapers among the sheaves: so she came, and hath continued even from the morning until now, that she tarried a little in the house. 8 Then said Boaz unto Ruth, Hearest thou not, my daughter? Go not to glean in another field, neither go from hence, but abide here fast by my maidens: 9 Let thine eyes be on the field that they do reap, and go thou after them: have I not charged the young men that they shall not touch thee? and when thou art athirst, go unto the vessels, and drink of that which the young men have drawn. 10 Then she fell on her face, and bowed herself to the ground, and said unto him, Why have I found grace in thine eyes, that thou shouldest take knowledge of me, seeing I am a stranger? 11 And Boaz answered and said unto her, It hath fully been shewed me, all that thou hast done unto thy mother in law since the death of thine husband: and how thou hast left thy father and thy mother, and the land of thy nativity, and art come unto a people which thou knewest not heretofore. 12 The LORD recompense thy work, and a full reward be given thee of the LORD God of Israel, under whose wings thou art come to trust. 13 Then she said, Let me find favour in thy sight, my lord; for that thou hast comforted me, and for that thou hast spoken friendly unto thine handmaid, though I be not like unto one of thine handmaidens. 14 And Boaz said unto her, At mealtime come thou hither, and eat of the bread, and dip thy morsel in the vinegar. And she sat beside the reapers: and he reached her parched corn, and she did eat, and was sufficed, and left. 15 And when she was risen up to glean, Boaz commanded his young men, saying, Let her glean even among the sheaves, and reproach her not: 16 And let fall also some of the handfuls of purpose for her, and leave them, that she may glean them, and rebuke her not. 17 So she gleaned in the field until even, and beat out that she had gleaned: and it was about an ephah of barley. 18 And she took it up, and went into the city: and her mother in law saw what she had gleaned: and she brought forth, and gave to her that she had reserved after she was sufficed. 19 And her mother in law said unto her, Where hast thou gleaned to day? and where wroughtest thou? blessed be he that did take knowledge of thee. And she shewed her mother in law with whom she had wrought, and said, The man's name with whom I wrought to day is Boaz. 20 And Naomi said unto her daughter in law, Blessed be he of the LORD, who hath not left off his kindness to the living and to the dead. And Naomi said unto her, The man is near of kin unto us, one of our next kinsmen. 21 And Ruth the Moabitess said, He said unto me also, Thou shalt keep fast by my young men, until they have ended all my harvest. 22 And Naomi said unto Ruth her daughter in law, It is good, my daughter, that thou go out with his maidens, that they meet thee not in any other field. 23 So she kept fast by the maidens of Boaz to glean unto the end of barley harvest and of wheat harvest; and dwelt with her mother in law.
[AD 397] Ambrose of Milan on Ruth 2:2
Does the widow Naomi seem to you of small account, who supported her widowhood on the gleanings from another’s harvest, and who, when heavy with age, was supported by her daughter-in-law? It is a great benefit both for the support and for the advantage of widows that they so train their daughters-in-law as to have in them a support in full old age, and, as it were, payment for their teaching and reward for their training. For to her who has well taught and well instructed her daughter-in-law a Ruth will never be wanting who will prefer the widowed life of her mother-in-law to her father’s house, and if her husband also be dead, will not leave her, will support her in need, comfort her in sorrow and not leave her if sent away; for good instruction will never know need. So that Naomi, deprived of her husband and her two sons, having lost the offspring of her fruitfulness, did not lose the reward of her pious care, for she found both a comfort in sorrow and a support in poverty.

[AD 458] Theodoret of Cyrus on Ruth 2:12
The story of Boaz also teaches us about virtue. For he not only liberally shares his grain with Ruth but also consoles her with words. Not only does he share food with her but also was himself the minister of his kindness; so that whoever does not order another person to be his minister, but prepares the flour and bread himself, will have given very liberally indeed.

[AD 458] Theodoret of Cyrus on Ruth 2:12
The blessing followed as Boaz said it would. For Ruth received the full reward from God, so that she was the progenitor of the blessing of the nations.

[AD 458] Theodoret of Cyrus on Ruth 2:20
With a heart thankful for the remembrance of kindness, Naomi rewarded the absent benefactor of her daughter-in-law with a blessing. For she said, “May he who has acknowledged you be blessed, for he has filled an empty soul by doing what he did. He took notice not of poverty but only of the Lawgiver, who ordered that widows be shown care.”