Leviticus 18:15

Christian Standard Bible Anglicised

You are not to have sexual intercourse with your daughter-in-law.  She is your son’s wife; you are not to have sex with her.

Cross References

Leviticus 20:12

If a man sleeps with his daughter-in-law,  both of them must be put to death. They have acted perversely; their death is their own fault.

Ezekiel 22:11

One man within you commits a detestable act with his neighbour’s wife;  another defiles his daughter-in-law with depravity; and yet another violates his sister, his father’s daughter.

Genesis 38:26

Judah recognised them and said, ‘She is more in the right  than I,  since I did not give her to my son Shelah.’ And he did not know her intimately again.