lie

Leviticus 18:15
You must not have sexual relations with your daughter-in-law. She is your son's wife; you are not to have sexual relations with her.

Genesis 38:16, 18
Not realizing that she was his daughter-in-law, he went over to her and said, "Come now, let me sleep with you." "What will you give me for sleeping with you?" she asked. . . .

Deuteronomy 27:23
Cursed is he who sleeps with his mother-in-law.' And let all the people say, 'Amen!'

confusion

Leviticus 18:23
You must not have sexual relations with any animal, thus defiling yourself with it; a woman must not stand before an animal to mate with it; that is a perversion.