Imamat 18:8

18:8 You must not have sexual intercourse with your father’s wife; she is your father’s nakedness. ¹ 

Imamat 20:11

20:11 If a man has sexual intercourse with his father’s wife, he has exposed his father’s nakedness. ²  Both of them must be put to death; their blood guilt is on themselves. ³ 

[18:8]  ¹ tn Heb “the nakedness of your father she is.” See the note on v. 7 above. This law refers to another wife of the man’s father, who is not that man’s mother. The laws in the Pentateuch sometimes assume the possibility that a man may have more than one wife (cf., e.g., Deut 21:15-17).

[20:11]  ² sn See the note on Lev 18:7 above.

[20:11]  ³ tn See the note on v. 9 above.