When the mishna says three days before the holiday – does it mean including the day of the holiday (3 all together) or 3 full days before plus the day of the holiday? Several sources are brought to attempt to answer the question. What is the reason for the prohibition – is it because he/she will thank their gods because of it or is it because you are helping them to worship idols? What if you sold stuff to the non-Jew anyway, is it forbidden to benefit from the money received? Why are all the case in the mishna forbidden both in a way where you are helping the non-Jew and also when the non-Jew is helping you?
Shiur in memory of Rachel bat Menachem Mendel and Pesha