Leviticus 18:15
The nakedness of thy daughter-in-law thou dost not uncover; she is thy son's wife; thou dost not uncover her nakedness.
Leviticus 20:12
And a man who lieth with his daughter-in-law -- both of them are certainly put to death; confusion they have made; their blood is on them.
Genesis 38:26
And Judah discerneth and saith, 'She hath been more righteous than I, because that I did not give her to Shelah my son;' and he hath not added to know her again.
Ezekiel 22:11
And each with the wife of his neighbour hath done abomination, And each his daughter-in-law hath defiled through wickedness, And each his sister, his father's daughter, hath humbled in thee.
Genesis 38:18-19
and he saith, 'What is the pledge that I give to thee?' and she saith, 'Thy seal, and thy ribbon, and thy staff which is in thy hand;' and he giveth to her, and goeth in unto her, and she conceiveth to him;