Contradiction with Genesis 20:12
Abraham refers to Sarah as his sister, although she is his wife and half-sister, which shows a relationship that Leviticus 18:9 would prohibit.
Genesis 20:12: And yet indeed [she is] my sister; she [is] the daughter of my father, but not the daughter of my mother; and she became my wife.
Paradox #1
This verse highlights a prohibition that could seem inconsistent with the fact that other parts of the biblical texts sometimes depict or record family relationships that do not adhere to this rule, creating a potential moral conflict or contradiction within the larger biblical narrative.