Mechon Mamre
Lev 18:3 After the doings of the land of Egypt, wherein ye dwelt, shall ye not do; and after the doings of the land of Canaan, whither I bring you, shall ye not do; neither shall ye walk in their statutes. 4 Mine ordinances shall ye do, and My statutes shall ye keep, to walk therein: I am the LORD your God. 5 Ye shall therefore keep My statutes, and Mine ordinances, which if a man do, he shall live by them: I am the LORD. {S} 6 None of you shall approach to any that is near of kin to him, to uncover their nakedness. I am the LORD. {S} 7 The nakedness of thy father, and the nakedness of thy mother, shalt thou not uncover: she is thy mother; thou shalt not uncover her nakedness. {S} 8 The nakedness of thy father’s wife shalt thou not uncover: it is thy father’s nakedness. {S} 9 The nakedness of thy sister, the daughter of thy father, or the daughter of thy mother, whether born at home, or born abroad, even their nakedness thou shalt not uncover. {S} 10 The nakedness of thy son’s daughter, or of thy daughter’s daughter, even their nakedness thou shalt not uncover; for theirs is thine own nakedness. {S} 11 The nakedness of thy father’s wife’s daughter, begotten of thy father, she is thy sister, thou shalt not uncover her nakedness. {S} 12 Thou shalt not uncover the nakedness of thy father’s sister: she is thy father’s near kinswoman. {S} 13 Thou shalt not uncover the nakedness of thy mother’s sister; for she is thy mother’s near kinswoman. {S} 14 Thou shalt not uncover the nakedness of thy fathers brother, thou shalt not approach to his wife: she is thine aunt. {S} 15 Thou shalt not uncover the nakedness of thy daughter-in-law: she is thy son’ wife; thou shalt not uncover her nakedness. {S} 16 Thou shalt not uncover the nakedness of thy brother’s wife: it is thy brother’s nakedness. {S} 17 Thou shalt not uncover the nakedness of a woman and her daughter; thou shalt not take her son’s daughter, or her daughter’s daughter, to uncover her nakedness: they are near kinswomen; it is lewdness. 18 And thou shalt not take a woman to her sister, to be a rival to her, to uncover her nakedness, beside the other in her lifetime. 19 And thou shalt not approach unto a woman to uncover her nakedness, as long as she is impure by her uncleanness. 20 And thou shalt not lie carnally with thy neighbour’s wife, to defile thyself with her.
Or the American Bible
Lev 18
The LORD said to Moses,
2
"Speak to the Israelites and tell them: I, the LORD, am your God.
3
You shall not do as they do in the land of Egypt, where you once lived, nor shall you do as they do in the land of Canaan, where I am bringing you; do not conform to their customs.
4
My decrees you shall carry out, and my statutes you shall take care to follow. I, the LORD, am your God.
5
Keep, then, my statutes and decrees, for the man who carries them out will find life through them. I am the LORD.
6
1 "None of you shall approach a close relative to have sexual intercourse with her. I am the LORD.
7
You shall not disgrace your father by having intercourse with your mother. Besides, since she is your own mother, you shall not have intercourse with her.
8
You shall not have intercourse with your father’s wife, for that would be a disgrace to your father.
9
You shall not have intercourse with your sister, your father’s daughter or your mother’s daughter, whether she was born in your own household or born elsewhere.
10
You shall not have intercourse with your son’s daughter or with your daughter’s daughter, for that would be a disgrace to your own family.
11
You shall not have intercourse with the daughter whom your father’s wife bore to him, since she, too, is your sister.
12
You shall not have intercourse with your father’s sister, since she is your father’s relative.
13
You shall not have intercourse with your mother’s sister, since she is your mother’s relative.
14
You shall not disgrace your father’s brother by being intimate with his wife, since she, too, is your aunt.
15
You shall not have intercourse with your daughter-in-law; she is your son’s wife, and therefore you shall not disgrace her.
16
2 You shall not have intercourse with your brother’s wife, for that would be a disgrace to your brother.
17
You shall not have intercourse with a woman and also with her daughter, nor shall you marry and have intercourse with her son’s daughter or her daughter’s daughter; this would be shameful, because they are related to her.
18
While your wife is still living you shall not marry her sister as her rival; for thus you would disgrace your first wife.
19
"You shall not approach a woman to have intercourse with her while she is unclean from menstruation.
20
You shall not have carnal relations with your neighbor’s wife, defiling yourself with her.
I believe that Dr Hahn may well have the correct take on this scripture. Ham’s curse was put upon him because he had carnal relations with Noah’s wife, his own mother.