Excerpts from The Book of Ruth:
In the days when the judges ruled, there was a famine in the land, and a man from Bethlehem in Judah, together with his wife and two sons, went to live for a while in the country of Moab. The man’s name was Elimelech, his wife’s name Naomi, and the names of his two sons were Mahlon and Kilion. They were Ephrathites from Bethlehem, Judah. And they went to Moab and lived there.
Now Elimelech, Naomi’s husband, died, and she was left with her two sons. They married Moabite women, one named Orpah and the other Ruth. After they had lived there about ten years, both Mahlon and Kilion also died, and Naomi was left without her two sons and her husband.
When she heard in Moab that the LORD had come to the aid of his people by providing food for them, Naomi and her daughters-in-law prepared to return home from there. With her two daughters-in-law she left the place where she had been living and set out on the road that would take them back to the land of Judah.
Then Naomi said to her two daughters-in-law, “Go back, each of you, to your mother’s home. May the LORD show kindness to you, as you have shown to your dead and to me. May the LORD grant that each of you will find rest in the home of another husband.”

...Then Orpah kissed her mother-in-law good-by, but Ruth clung to her.
“Look,” said Naomi, “your sister-in-law is going back to her people and her gods. Go back with her.”
But Ruth replied, “Don’t urge me to leave you or to turn back from you. Where you go I will go, and where you stay I will stay. Your people will be my people and your God my God. Where you die I will die, and there I will be buried. May the LORD deal with me, be it ever so severely, if anything but death separates you and me.” When Naomi realized that Ruth was determined to go with her, she stopped urging her.

So Naomi returned from Moab accompanied by Ruth the Moabitess, her daughter-in-law, arriving in Bethlehem as the barley harvest was beginning.
Now Naomi had a relative on her husband’s side, from the clan of Elimelech, a man of standing, whose name was Boaz.
And Ruth the Moabitess said to Naomi, “Let me go to the fields and pick up the leftover grain behind anyone in whose eyes I find favor.”
Naomi said to her, “Go ahead, my daughter.” So she went out and began to glean in the fields behind the harvesters. As it turned out, she found herself working in a field belonging to Boaz, who was from the clan of Elimelech.

So Ruth gleaned in the field until evening. Then she threshed the barley she had gathered, and it amounted to about an ephah. She carried it back to town, and her mother-in-law saw how much she had gathered. Ruth also brought out and gave her what she had left over after she had eaten enough.
Her mother-in-law asked her, “Where did you glean today? Where did you work? Blessed be the man who took notice of you!”
Then Ruth told her mother-in-law about the one at whose place she had been working. “The name of the man I worked with today is Boaz,” she said.
“The LORD bless him!” Naomi said to her daughter-in-law. “He has not stopped showing his kindness to the living and the dead.” She added, “That man is our close relative; he is one of our kinsman-redeemers.”

So Boaz took Ruth and she became his wife. Then he went to her, and the LORD enabled her to conceive, and she gave birth to a son.
Then Naomi took the child, laid him in her lap and cared for him. The women living there said, “Naomi has a son.” And they named him Obed. He was the father of Jesse, the father of David.