'Mother in law' in the Bible

And they lifted up their voices, and wept again: and Orpah kissed her mother-in-law; but Ruth clung to her.

And Boaz answered and said unto her, It has fully been shown me, all that you have done unto your mother-in-law since the death of your husband: and how you have left your father and your mother, and the land of your birth, and are come unto a people which you knew not before.

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 what she had reserved after she was satisfied.

And her mother-in-law said unto her, Where have you gleaned today? and where did you work? blessed be he that did take knowledge of you. And she showed her mother-in-law with whom she had worked, and said, The man's name with whom I worked today is Boaz.

So she kept close by the maidens of Boaz to glean unto the end of barley harvest and of wheat harvest; and dwelt with her mother-in-law.

Then Naomi her mother-in-law said unto her, My daughter, shall I not seek rest for you, that it may be well with you?

And she went down unto the floor, and did according to all that her mother-in-law bade her.

And when she came to her mother-in-law, she said, How are you, my daughter? And she told her all that the man had done to her.

And she said, These six measures of barley he gave me; for he said to me, Go not empty unto your mother-in-law.