Leviticus 18:3

18:3 You must not do as they do in the land of Egypt where you have been living, and you must not do as they do in the land of Canaan into which I am about to bring you; you must not walk in their statutes.

Leviticus 18:14

18:14 You must not expose the nakedness of your father’s brother; you must not approach his wife to have sexual intercourse with her. She is your aunt.