'Daughters in law' in the Bible

Then she set out with her daughters-in-law to return from the country of Moab, for she had heard in Moab how the Lord had taken care of His people [of Judah] in giving them food.

So she left the place where she was living, her two daughters-in-law with her, and they started on the way back to the land of Judah.

But Naomi said to her two daughters-in-law, “Go back, each of you return to your mother’s house. May the Lord show kindness to you as you have shown kindness to the dead and to me.