The classical source expands or derives a specific point from the language of the passuk. The Core Text above is the relevant region of interest.
Type of Learning
Custom (An aggadic derasha that re-reads the list of curses as a coherent description of the consequences that flow from illicit relations.)
What Is Learned
Chazal understand the series of “arur” statements as teaching the spiritual and social ruin that follows from arayos: the child born of such a union may feel driven to leave the community and serve idolatry, and the parents who caused this are themselves included in the curse.