'One' in the Bible

Her sons took Moabite women as their wives: one was named Orpah and the second was named Ruth. After they lived in Moab about 10 years,

Then Boaz said to Ruth, “Listen, my daughter. Don’t go and gather grain in another field, and don’t leave this one, but stay here close to my female servants.

“My lord,” she said, “you have been so kind to me, for you have comforted and encouraged your slave, although I am not like one of your female servants.”

Then Naomi said to her daughter-in-law, “May he be blessed by the Lord, who has not forsaken his kindness to the living or the dead.” Naomi continued, “The man is a close relative. He is one of our family redeemers.”