'Daughters in law' in the Bible

And she arose, she and her daughters-in-law, and returned from the fields of Moab; for she had heard in the fields of Moab how that Jehovah had visited his people to give them bread.

Wherefore she went forth out of the place where she had been, and her two daughters-in-law with her; and they went on the way to return to the land of Judah.

And Naomi said to her two daughters-in-law, Go, return each to her mother's house. Jehovah deal kindly with you, as ye have dealt with the dead and with me.

they sacrifice upon the tops of the mountains, and burn incense upon the hills, under oak and poplar and terebinth, because the shade thereof is good; therefore your daughters play the harlot and your daughters-in-law commit adultery.

I will not punish your daughters when they play the harlot, nor your daughters-in-law for their committing adultery; for they themselves go aside with harlots, and they sacrifice with prostitutes: and the people that doth not understand shall come to ruin.