1)
To whom does "Lo Sischaten bam" refer?
1.
Yevamos, 76a: It refers to the seven nations after they have converted. 1
1
Yevamos Ibid.): Because before they have converted, Chitun (marriage) with a Nochris is not applicable. See also Torah Temimah, note 5.
2)
What are the implications of "Bitcha Lo Siten li'Veno ... "?