Incest with a Daughter
It is forbidden to have incestuous relations with one's daughter.
The Torah doesn't explicitly mention this prohibition—for if incest with a granddaughter is forbidden, how much more so incest with a daughter. And the Sages deduced from the wording of the verses that incest with a daughter is biblically prohibited.
Incest with a Daughter's Daughter
"The nakedness of . . . [or] your daughter's daughter you shall not uncover their nakedness, for they are your own nakedness"—Leviticus 18:10.
It is forbidden to have incestuous relations with one's daughter's daughter.
Incest with a Mother-in-Law or Wife's Daughter
"You shall not uncover the nakedness of a woman and her daughter"—Leviticus 18:17.
It is forbidden to have incestuous relations with one's wife's mother or daughter.
Incest with a Wife's Paternal Grandmother or a Wife's Son's Daughter
"...her son's daughter..."—Leviticus 18:17.
It is forbidden to have incestuous relations with one's wife's paternal grandmother or one's wife's son's daughter
Incest with a Wife's Maternal Grandmother or a Wife's Daughter's Daughter
"...and her daughter's daughter you shall not marry"—Leviticus 18:17.
It is forbidden to have incestuous relations with one's wife's maternal grandmother or one's wife's daughter's daughter
